add workflow Block PRs with "NO-MERGE" label

Author: Epica3055

.github/workflows/block-PR-with-no-merge-label.yml

@@ -0,0 +1,26 @@
+# .github/workflows/block-no-merge-label.yml
+name: Block PRs with "NO-MERGE" label
+
+on:
+  pull_request:
+    types: [labeled, unlabeled, synchronize, opened, reopened]
+
+jobs:
+  check-label:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check for "NO-MERGE" label
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const labels = await github.rest.issues.listLabelsOnIssue({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number
+            });
+
+            const hasNoMerge = labels.data.some(label => contains(label.name, 'NO-MERGE'));
+
+            if (hasNoMerge) {
+              core.setFailed('This pull request has a "NO-MERGE" label.');
+            }