update codeql workflow

Author: GIC-de

.github/workflows/codeql-analysis.yml

@@ -13,7 +13,7 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ dev ]
+    branches: [ dev, main ]
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ dev ]