added some required labels to ci

.github/workflows/required-labels.yml

@@ -0,0 +1,25 @@
+name: Required Labels
+
+on:
+  pull_request:
+    types: [labeled, unlabeled, opened, edited, synchronize]
+jobs:
+  enforce--ready-label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          mode: exactly
+          count: 1
+          labels: |
+            ready to merge
+          message: "Add the 'ready to merge' label to merge this PR"
+  prevent-donotmerge-label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: mheap/github-action-required-labels@v5
+        with:
+          mode: exactly
+          count: 0
+          labels: 'DO NOT MERGE'
+          message: 'DO NOT MERGE label is not allowed on this PR'