Upgrade to GitHub-native Dependabot

Author: dependabot-preview[bot]

.github/dependabot.yml

@@ -0,0 +1,77 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: weekly
+    day: saturday
+    time: "03:00"
+    timezone: Europe/Paris
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: css-loader
+    versions:
+    - 5.0.1
+    - 5.0.2
+    - 5.1.0
+    - 5.1.1
+    - 5.1.2
+    - 5.1.3
+    - 5.2.0
+    - 5.2.1
+  - dependency-name: webpack
+    versions:
+    - 4.46.0
+    - 5.21.0
+    - 5.21.2
+    - 5.23.0
+    - 5.24.2
+    - 5.24.3
+    - 5.25.0
+    - 5.27.0
+    - 5.28.0
+    - 5.30.0
+    - 5.31.2
+  - dependency-name: mini-css-extract-plugin
+    versions:
+    - 1.3.4
+    - 1.3.5
+    - 1.3.6
+    - 1.3.8
+    - 1.3.9
+    - 1.4.0
+    - 1.4.1
+  - dependency-name: "@babel/core"
+    versions:
+    - 7.12.10
+    - 7.12.16
+    - 7.12.17
+    - 7.13.10
+    - 7.13.13
+    - 7.13.14
+    - 7.13.15
+    - 7.13.8
+  - dependency-name: eslint
+    versions:
+    - 7.18.0
+    - 7.20.0
+    - 7.21.0
+    - 7.22.0
+    - 7.23.0
+    - 7.24.0
+  - dependency-name: postcss
+    versions:
+    - 8.2.6
+    - 8.2.7
+    - 8.2.8
+    - 8.2.9
+  - dependency-name: react-dropzone
+    versions:
+    - 11.2.4
+    - 11.3.1
+  - dependency-name: postcss-loader
+    versions:
+    - 4.2.0
+  - dependency-name: ini
+    versions:
+    - 1.3.8