Add Dependabot

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "02:00"
+      timezone: Europe/Paris
+    open-pull-requests-limit: 10
+    versioning-strategy: increase
+    groups:
+      babel-dependencies:
+        patterns:
+          - "*babel*"
+      aws-sdk-dependencies:
+        patterns:
+          - "*aws-sdk*"
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly
+      time: "02:00"
+      timezone: Europe/Paris
+    open-pull-requests-limit: 10

.github/release.yml

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+changelog:
+  exclude:
+    labels:
+      - Dependencies
+    authors:
+      - dependabot

.github/workflows/dependabot-automerge.yml

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+name: Auto-merge Dependabot minors
+on: pull_request_target
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2.1.0
+        with:
+          github-token: '${{ secrets.GITHUB_TOKEN }}'
+      - name: Approve and merge minor updates
+        if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-minor' || steps.metadata.outputs.update-type == 'version-update:semver-patch' }}
+        run: |
+          gh pr review --approve "$PR_URL"
+          gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}