Merge pull request #444 from guardian/aa/approve-dependabot

feat(deps): Auto approve Dependabot PRs

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

@@ -0,0 +1,23 @@
+name: Dependabot auto-approve
+on: pull_request
+
+permissions:
+  pull-requests: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+      # In this project, CI passing is a strong enough signal that the PR is safe to merge
+      - name: Approve a PR
+        run: gh pr review --approve "$PR_URL" --comment "@dependabot merge"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}