Dependency, CI, and release updates

[andyleejordan]

We're getting there.

[Copilot]

Pull Request Overview

This PR updates various dependencies, CI configuration, and release processes for the vscode-powershell extension. The changes focus on modernizing the build pipeline and updating package dependencies to their latest versions.

• Updates multiple npm dependencies including esbuild, TypeScript, ESLint, and various @types packages
• Refactors the OneBranch CI pipeline to support both official and non-official builds with conditional template selection
• Updates build artifact sources and service connections to align with new organizational structure

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
package.json	Updates devDependencies and optionalDependencies to newer versions
.pipelines/vscode-powershell-OneBranch.yml	Restructures CI pipeline with new parameters, artifact sources, and conditional build templates
.npmrc	Adds note about registry configuration requirements for npm credential provider

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