Add Advanced Jules PR Reviewer action (#1523)

This PR adds the Advanced Jules PR Reviewer workflow to automatically
review PRs. It is configured to run on forks automatically as requested
by setting `skip_forks: false`. JULES_API_KEY and GITHUB_TOKEN are
mapped correctly as per documentation.

---
*PR created automatically by Jules for task
[10601196597817548410](https://jules.google.com/task/10601196597817548410)
started by @calibrain*

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: calibrain <191882101+calibrain@users.noreply.github.com>

.github/workflows/jules-pr-reviewer.yml

@@ -0,0 +1,22 @@
+name: Jules PR Review
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+concurrency:
+  group: jules-review-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  review:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: read
+      checks: write
+    steps:
+      - uses: thalesraymond/jules-pr-reviewer@v1
+        with:
+          jules_api_key: ${{ secrets.JULES_API_KEY }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          skip_forks: false