Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,29 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "04:00"
+    timezone: America/Montreal
+  open-pull-requests-limit: 20
+  versioning-strategy: increase
+  ignore:
+  - dependency-name: copy-webpack-plugin
+    versions:
+    - ">= 6.0.a, < 6.1"
+  - dependency-name: copy-webpack-plugin
+    versions:
+    - ">= 6.a, < 7"
+  - dependency-name: postcss-flexbugs-fixes
+    versions:
+    - ">= 5.a, < 6"
+  - dependency-name: postcss-loader
+    versions:
+    - ">= 4.a, < 5"
+  - dependency-name: webpack
+    versions:
+    - 5.34.0
+  - dependency-name: core-js
+    versions:
+    - 3.10.2