Added auto-merge for Dependabot updates

Author: yanneves

.github/workflows/build.yml

@@ -18,3 +18,16 @@ jobs:
       - run: npm run build
         env:
           CI: true
+
+  dependabot:
+    permissions:
+      contents: write
+      pull-requests: read
+    runs-on: ubuntu-latest
+    needs: [npm-run-build]
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - run: 'gh pr merge --auto --rebase "$PULL_REQUEST"'
+        env:
+          PULL_REQUEST: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}