Add dependabot auto-approve workflow

Author: MarcHouben

.github/workflows/dependabot-approve-pr.yml

@@ -0,0 +1,38 @@
+name: Dependabot PR Approval and Merge
+# This workflow automatically approves and merges pull requests created by Dependabot.
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+  dependabot:
+    needs: [ build ] # <-- important!
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: write
+    if: ${{ github.actor == 'dependabot[bot]' && github.event_name == 'pull_request'}}
+    steps:
+    - id: metadata
+      uses: dependabot/fetch-metadata@v2
+      with:
+        github-token: "${{ secrets.GITHUB_TOKEN }}"
+    - run: |
+        gh pr merge --squash --auto "$PR_URL"
+      env:
+        PR_URL: ${{github.event.pull_request.html_url}}
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}