Added step for notification for pr creation (#49)

Author: vpaiu

.github/workflows/update-automation.yaml

@@ -404,10 +404,37 @@ jobs:
             
           echo "Created PR from ${{ needs.update-automation.outputs.staging-branch }} to $TARGET_BRANCH"
 
+  send-notification:
+    name: Send Notification
+    runs-on: ubuntu-latest
+    needs: [update-automation, create-pr]
+    environment: update-automation-workflow-env
+    permissions:
+      id-token: write # Required for OIDC
+    env:
+      REPOSITORY: ${{ github.repository }}
+      AWS_ROLE_TO_ASSUME: ${{ secrets.AWS_ROLE_TO_ASSUME }}
+    steps:
+      - name: Use role credentials for notification
+        id: aws-creds
+        continue-on-error: ${{ env.REPOSITORY != 'aws/code-editor' }}
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ env.AWS_ROLE_TO_ASSUME }}
+          aws-region: us-east-1
+      - name: Send notification
+        if: steps.aws-creds.outcome == 'success'
+        run: |
+          aws cloudwatch put-metric-data \
+            --namespace "GitHub/Workflows" \
+            --metric-name "PRCreated" \
+            --dimensions "Repository=${{ env.REPOSITORY }},Workflow=UpdateAutomation" \
+            --value 1
+
   handle-failures:
     name: Handle Failures
     runs-on: ubuntu-latest
-    needs: [update-automation, build-and-update-package-locks, generate-oss-attribution, create-pr]
+    needs: [update-automation, build-and-update-package-locks, generate-oss-attribution, create-pr, send-notification]
     environment: update-automation-workflow-env
     if: failure()
     permissions: