Set CodeQL to run every Monday morning & remove useless comments

.github/workflows/codeql.yml

@@ -1,22 +1,11 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
 name: "CodeQL Advanced"
 
 on:
   push:
     branches-ignore:
      - master
   schedule:
-    - cron: '30 8 * * 6'
+    - cron: '30 8 * * 1'
 
 jobs:
   analyze: