Add assets for JavaScript code linting

An ESLint configuration file provides the standardized configuration for use in Arduino tooling projects. This uses the
Airbnb base configuration. Since Prettier provides code formatting, overlapping ESLint rules are disable via
eslint-config-prettier.

A task is provided to run ESLint on the JavaScript code files of the project the assets are applied to.

On every push and pull request that affects relevant files, and periodically, a GitHub Actions workflow runs this task.

workflow-templates/assets/check-javascript-task/Taskfile.yml

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+# See: https://taskfile.dev/#/usage
+version: "3"
+
+tasks:
+  # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-javascript-task/Taskfile.yml
+  js:fix:
+    desc: Fix JavaScript code linting violations
+    deps:
+      - task: npm:install-deps
+    cmds:
+      - npx eslint --ext .js,.jsx --fix .
+
+  # Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-javascript-task/Taskfile.yml
+  js:lint:
+    desc: Lint JavaScript code
+    deps:
+      - task: npm:install-deps
+    cmds:
+      - npx eslint --ext .js,.jsx .

workflow-templates/assets/check-javascript/.eslintrc.yml

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+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-javascript/.eslintrc.yml
+# See: https://eslint.org/docs/user-guide/configuring/
+# The code style defined in this file is the official standardized style to be used in all Arduino projects and should
+# not be modified.
+
+extends:
+  - airbnb-base
+  - prettier
+rules:
+  max-len:
+    - error
+    - code: 180
+  no-console: "off"
+  no-underscore-dangle: "off"

workflow-templates/check-javascript-task.md

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+# "Check JavaScript" workflow (Task)
+
+Workflow file: [check-javascript-task.yml](check-javascript-task.yml)
+
+Use [**ESLint**](https://eslint.org/) to lint the repository's JavaScript files.
+
+**Note:** This workflow is focused on linting. Formatting checks for JavaScript are provided by the ["Check Prettier Formatting" workflow (Task)](https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-prettier-formatting-task.md), so both should be used.
+
+This is the version of the workflow for projects using the [Task](https://taskfile.dev/#/) task runner tool.
+
+## Installation
+
+### Workflow
+
+Install the [`check-javascript-task.yml`](check-javascript-task.yml) GitHub Actions workflow to `.github/workflows/`
+
+### Assets
+
+- [`.eslintrc.yml`](assets/check-javascript/.eslintrc.yml) - **ESLint** configuration file.
+  ❗ The code style defined in this file is the official standardized style to be used in all Arduino projects and should not be modified.
+  - Install to: repository root
+- [`Taskfile.yml`](assets/check-javascript-task/Taskfile.yml) - JavaScript linting tasks.
+  - Install to: repository root (or merge into the existing `Taskfile.yml`).
+- [`Taskfile.yml`](assets/npm-task/Taskfile.yml) - npm tasks.
+  - Install to: repository root (or merge into the existing `Taskfile.yml`).
+
+### Dependencies
+
+The tool dependencies of this workflow are managed by [npm](https://www.npmjs.com/).
+
+Add the dependencies by running this command:
+
+```text
+npm install --save-dev eslint@^8.19.0 eslint-config-prettier@^8.5.0
+npx install-peerdeps --dev eslint-config-airbnb-base
+```
+
+Commit the resulting changes to the `package.json` and `package-lock.json` files.
+
+### Configuration
+
+#### Workflow
+
+Configure the version of [**Node.js**](https://nodejs.org) used for development of the project in the `env.NODE_VERSION` field of `check-javascript-task.yml`.
+
+#### `.gitignore`
+
+Add the following to [`/.gitignore`](https://git-scm.com/docs/gitignore):
+
+```gitignore
+/node_modules/
+```
+
+### Readme badge
+
+Markdown badge:
+
+```markdown
+[![Check JavaScript status](https://github.com/TODO_REPO_OWNER/TODO_REPO_NAME/actions/workflows/check-javascript-task.yml/badge.svg)](https://github.com/TODO_REPO_OWNER/TODO_REPO_NAME/actions/workflows/check-javascript-task.yml)
+```
+
+Replace the `TODO_REPO_OWNER` and `TODO_REPO_NAME` placeholders in the URLs with the final repository owner and name ([example](https://raw.githubusercontent.com/arduino-libraries/ArduinoIoTCloud/master/README.md)).
+
+---
+
+Asciidoc badge:
+
+```adoc
+image:https://github.com/{repository-owner}/{repository-name}/actions/workflows/check-javascript-task.yml/badge.svg["Check JavaScript status", link="https://github.com/{repository-owner}/{repository-name}/actions/workflows/check-javascript-task.yml"]
+```
+
+Define the `{repository-owner}` and `{repository-name}` attributes and use them throughout the readme ([example](https://raw.githubusercontent.com/arduino-libraries/WiFiNINA/master/README.adoc)).
+
+## Commit message
+
+```
+Add CI workflow to lint JavaScript code
+
+On every push and pull request that affects relevant files, and periodically, run ESLint on the repository's JavaScript
+files.
+
+ESLint is configured via the .eslintrc.yml file:
+https://eslint.org/docs/user-guide/configuring/configuration-files
+```
+
+## PR message
+
+```markdown
+On every push and pull request that affects relevant files, and periodically, run [**ESLint**](https://eslint.org/) on the repository's JavaScript files.
+
+**ESLint** is configured via the `.eslintrc.yml` file:
+https://eslint.org/docs/latest/user-guide/configuring/configuration-files
+```

workflow-templates/check-javascript-task.yml

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+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-javascript-task.md
+name: Check JavaScript
+
+env:
+  # See: https://github.com/actions/setup-node/#readme
+  NODE_VERSION: 16.x
+
+# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/check-javascript-task.ya?ml"
+      - ".eslintignore"
+      - "**/.eslintrc*"
+      - "package.json"
+      - "package-lock.json"
+      - "Taskfile.ya?ml"
+      - "**.jsx?"
+  pull_request:
+    paths:
+      - ".github/workflows/check-javascript-task.ya?ml"
+      - ".eslintignore"
+      - "**/.eslintrc*"
+      - "package.json"
+      - "package-lock.json"
+      - "Taskfile.ya?ml"
+      - "**.jsx?"
+  workflow_dispatch:
+  repository_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Lint
+        run: task js:lint

workflow-templates/dependabot/workflow-template-copies/.github/workflows/check-javascript-task.yml

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+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-javascript-task.md
+name: Check JavaScript
+
+env:
+  # See: https://github.com/actions/setup-node/#readme
+  NODE_VERSION: 16.x
+
+# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/check-javascript-task.ya?ml"
+      - ".eslintignore"
+      - "**/.eslintrc*"
+      - "package.json"
+      - "package-lock.json"
+      - "Taskfile.ya?ml"
+      - "**.jsx?"
+  pull_request:
+    paths:
+      - ".github/workflows/check-javascript-task.ya?ml"
+      - ".eslintignore"
+      - "**/.eslintrc*"
+      - "package.json"
+      - "package-lock.json"
+      - "Taskfile.ya?ml"
+      - "**.jsx?"
+  workflow_dispatch:
+  repository_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
+      - name: Lint
+        run: task js:lint