ci(pull-requests): review notification bot (#2468)

This commit introduces an automated GitHub Actions workflow to remind reviewers about stale pull requests. The workflow runs daily at 12:00 PM UTC on business days and posts a reminder on non-draft PRs that have been waiting for review for two or more days and have fewer than two approvals. `status: in progress`, `status: pending review` labels are no longer required.

Author: onur-ozkan

.github/workflows/pr-lint.yml

@@ -44,13 +44,3 @@ jobs:
             echo "PR title is too long (greater than 85 characters)"
             exit 1
           fi
-
-      - name: Check PR labels
-        env:
-          LABEL_NAMES: ${{ toJson(github.event.pull_request.labels.*.name) }}
-        if: "!((contains(env.LABEL_NAMES, 'pending review') && !contains(env.LABEL_NAMES, 'in progress') && !contains(env.LABEL_NAMES, 'blocked'))
-          || (!contains(env.LABEL_NAMES, 'pending review') && contains(env.LABEL_NAMES, 'in progress') && !contains(env.LABEL_NAMES, 'blocked'))
-          || (!contains(env.LABEL_NAMES, 'pending review') && !contains(env.LABEL_NAMES, 'in progress') && contains(env.LABEL_NAMES, 'blocked')))"
-        run: |
-          echo "PR must have "exactly one" of these labels: ['status: pending review', 'status: in progress', 'status: blocked']."
-          exit 1

.github/workflows/pr-review-reminder.yml

@@ -0,0 +1,28 @@
+name: PR Review Reminder
+
+on:
+  schedule:
+    # Run at 12:00 PM everyday.
+    - cron: '0 12 * * *'
+
+jobs:
+  pr-review-reminder:
+    permissions:
+      contents: read
+      pull-requests: write
+
+    runs-on: ubuntu-latest
+    name: PR Review Reminder
+
+    steps:
+      - name: Run PR Review Reminder
+        uses: thundermiracle/review-reminder-action@224d83b90c76ac597776c79ba1f63539f0bc2795
+        with:
+          stale-days: 2
+          ignore-draft: true
+          # Don't ping people at weekends.
+          only-business-days: true
+          # 2 approvals are enough.
+          skip-approve-count: 2
+          token: "${{ secrets.GITHUB_TOKEN }}"
+          send-reminder-comment: true