chore: Only run codeql on schedule

.github/workflows/codeql.yml

@@ -1,22 +1,9 @@
 name: 'CodeQL'
 
 on:
-  push:
-    branches: ['main']
-    paths:
-      - src/**
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: ['main']
-    paths:
-      - src/**
   schedule:
     - cron: '20 2 * * 0'
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
   analyze:
     name: Analyze