chore: CodeQL job needs to run on merge queue (#86)

Otherwise we cannot make it a required check.

And also let it run on workflow dispatch because why not.

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Author: mrgrain

.github/workflows/codeql.yml

@@ -12,10 +12,12 @@
 name: "CodeQL"
 
 on:
+  workflow_dispatch: {}
+  merge_group: {}
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "main" ]    
   schedule:
     - cron: '21 23 * * 5'