MAINT:Enable CodeQL scanning for dev branch PRs

Author: nitin-parashar

.github/workflows/codeql.yml

@@ -2,7 +2,7 @@ name: "CodeQL Security Scan"
 
 on:
   pull_request:
-    branches: [ main ]
+    branches: [ main, dev ]
   schedule:
     # Run every Monday at 00:00 UTC
     - cron: '0 0 * * 1'