script to auto delete merged branch

.github/workflows/delete_merged_branch.yml

@@ -0,0 +1,21 @@
+name: Delete Merged Branch
+
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  delete_merged_branch:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true
+    steps:
+      - name: Delete branch
+        run: |
+          branch=${{ github.ref }}
+          if [ "$branch" != "refs/heads/main" ] && [ "$branch" != "refs/heads/master" ]; then
+            git push origin --delete "${branch#refs/heads/}"
+          else
+            echo "Skipping deletion of main or master branch"
+          fi
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}