feat(GitHub): add review request notification for maintainers interna…

…l channel

.github/workflows/notify-reviewers.yml

@@ -0,0 +1,21 @@
+name: Internal Notification Channel
+on:
+  pull_request:
+    types: [opened, edited]
+    branches: ["release/*"]
+jobs:
+  send_notification:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send Notification
+        env:
+          INTERNAL_NOTIFICATION_CHANNEL_API_ENDPOINT: ${{ secrets.INTERNAL_NOTIFICATION_CHANNEL_API_ENDPOINT }}
+        run: |
+          PR_ID=${{ github.event.pull_request.number }}
+          PR_URL=${{ github.event.pull_request.html_url }}
+          PR_AUTHOR=${{ github.event.pull_request.user.login }}
+          REVIEWERS=${{ github.event.pull_request.requested_reviewers.*.login }}
+
+          MESSAGE="New Pull Request: #$PR_ID by @$PR_AUTHOR\nLink: $PR_URL\nRequested Reviewers: $REVIEWERS"
+
+          curl -X POST -H "Content-Type: application/json" -d "{\"message\": \"$MESSAGE\"}" $INTERNAL_NOTIFICATION_CHANNEL_API_ENDPOINT