Upgrade to GitHub-native Dependabot (DIYgod#590)

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -0,0 +1,40 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "21:00"
+  open-pull-requests-limit: 10
+  reviewers:
+  - DIYgod
+  labels:
+  - dependencies
+  ignore:
+  - dependency-name: webpack
+    versions:
+    - 5.26.2
+    - 5.27.2
+    - 5.28.0
+    - 5.28.0
+    - 5.30.0
+    - 5.31.0
+    - 5.31.2
+    - 5.35.0
+    - 5.35.1
+  - dependency-name: webpack-cli
+    versions:
+    - 4.4.0
+    - 4.5.0
+    - 4.5.0
+    - 4.5.0
+    - 4.6.0
+    - 4.6.0
+    - 4.6.0
+    - 4.6.0
+  - dependency-name: copy-webpack-plugin
+    versions:
+    - 8.1.0
+  - dependency-name: postcss-loader
+    versions:
+    - 5.1.0