add permission

Author: ddevsr

.github/workflows/label-signing.yml

@@ -1,6 +1,15 @@
 name: Check Signed PR
 on: pull_request
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
 jobs:
   build:
     name: Check Signed Commit