ci: enable workflows for merge queue

Author: MarcusNotheis

.github/workflows/codeql-analysis.yml

@@ -17,6 +17,7 @@ on:
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [main]
+  merge_group:
   schedule:
     - cron: '29 19 * * 6'