concurrency added as workflow runs not instantly

.github/workflows/codeql.yml

@@ -8,6 +8,10 @@ on:
   schedule:
     - cron: '30 13 * * 6'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
 jobs:
   analyze:
     name: Analyze