Create dependabot.yml

.github/workflows/dependabot.yml

@@ -0,0 +1,24 @@
+name: dependabot
+
+on:
+  pull_request: {}
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependabot: # https://tinyurl.com/e69djmen
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - uses: dependabot/fetch-metadata@v1
+        id: metadata
+        with: {github-token: "${{ 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.GITHUB_TOKEN }}