Update codeql.yml

Author: langalex

.github/workflows/codeql.yml

@@ -2,7 +2,7 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "main", "1.x" ]
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ "main", "1.x" ]