revert to example code in maven.yml

.github/workflows/maven.yml

@@ -8,16 +8,24 @@
 
 name: Dependabot auto-merge
 on: pull_request
+
 permissions:
-  pull-requests: write
   contents: write
+  pull-requests: write
+
 jobs:
   dependabot:
     runs-on: ubuntu-latest
-    if: ${{ github.actor == 'dependabot[bot]' }}
+    if: github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'owner/my_repo'
     steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@d7267f607e9d3fb96fc2fbe83e0af444713e90b7
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Enable auto-merge for Dependabot PRs
+        if: steps.metadata.outputs.update-type == 'version-update:semver-patch'
         run: gh pr merge --auto --merge "$PR_URL"
         env:
           PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.GHUB_TOKEN}}
+          GH_TOKEN: ${{secrets.GHUB_TOKEN}}