Adding Dependabot-approver

Author: davidcollom

.github/workflows/dependabot-reviewer.yaml

@@ -0,0 +1,30 @@
+# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions
+name: Approve and enable auto-merge for dependabot
+on: pull_request
+
+permissions:
+  contents: read
+
+jobs:
+  review:
+    if: ${{ github.actor == 'dependabot[bot]' && github.repository == 'jetstack/version-checker' }}
+    permissions:
+      pull-requests: write # for approving a PR
+      contents: write # for enabling auto-merge on a PR
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Approve PR
+        run: gh pr review --approve "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+      - name: Enable auto-merge for Dependabot PRs
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}