Adds a GHA check for breaking change description (#3074)

* Adds a GHA check for breaking change description

* prettier

.github/workflows/enforce-pr-labels.yml

@@ -31,3 +31,26 @@ jobs:
           REQUIRED_LABELS_ANY: "D1-audited👍,D5-nicetohaveaudit⚠️,D9-needsaudit👮,D2-notlive,D3-trivial"
           REQUIRED_LABELS_ALL: ""
           BANNED_LABELS: ""
+  validate-breaking-description:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Validate PR for "breaking" label and description
+        env:
+          PR_BODY: ${{ github.event.pull_request.body }}
+          PR_LABELS: ${{ toJson(github.event.pull_request.labels) }}
+        run: |
+          echo "Pull Request Labels: $PR_LABELS"
+          echo "Pull Request Body: $PR_BODY"
+
+          # Check if "breaking" label is set
+          if echo "$PR_LABELS" | grep -q '"breaking"'; then
+            echo "Label 'breaking' is present. Checking description..."
+            if echo "$PR_BODY" | grep -qi "## ⚠️ Breaking Changes ⚠️"; then
+              echo "✅ Description contains the required phrase."
+            else
+              echo "❌ Description does not contain the required phrase '## ⚠️ Breaking Changes ⚠️'."
+              exit 1
+            fi
+          else
+            echo "Label 'breaking' is not present. No validation needed."
+          fi