Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,56 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "09:00"
+    timezone: Asia/Tokyo
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: eslint-config-prettier
+    versions:
+    - 7.2.0
+    - 8.0.0
+    - 8.1.0
+    - 8.2.0
+  - dependency-name: "@typescript-eslint/experimental-utils"
+    versions:
+    - 4.14.1
+    - 4.14.2
+    - 4.15.0
+    - 4.15.1
+    - 4.15.2
+    - 4.16.1
+    - 4.17.0
+    - 4.18.0
+    - 4.19.0
+    - 4.20.0
+    - 4.21.0
+  - dependency-name: "@types/chai"
+    versions:
+    - 4.2.14
+    - 4.2.15
+    - 4.2.16
+  - dependency-name: y18n
+    versions:
+    - 4.0.1
+  - dependency-name: "@types/react"
+    versions:
+    - 17.0.0
+    - 17.0.1
+    - 17.0.2
+    - 17.0.3
+  - dependency-name: typescript
+    versions:
+    - 4.1.3
+    - 4.1.4
+    - 4.1.5
+    - 4.2.2
+    - 4.2.3
+  - dependency-name: lint-staged
+    versions:
+    - 10.5.3
+  - dependency-name: react
+    versions:
+    - 17.0.1