Switch off codeql cache build save for PR jobs (#586)

* Switch off codeql cache build save for PR jobs and update paths list

Author: alan-forbes-cp

.github/workflows/codeql.yml

@@ -7,6 +7,17 @@ on:
   pull_request:
     branches:
       - main
+    paths:
+      - 'source/**'
+      - 'clik/**'
+      - 'modules/**'
+      - 'examples/**'
+      - 'cmake/**'
+      - 'hal/**'
+      - '.github/actions/do_build_ock/**'
+      - '.github/actions/setup_build/**'
+      - '.github/workflows/codeql.yml'
+      - 'CMakeLists.txt'
   schedule:
     - cron: '19 9 * * 3'
 
@@ -77,7 +88,6 @@ jobs:
       - name: setup-ubuntu
         uses:  ./.github/actions/setup_build
         with:
-          save: true
           llvm_version: 18
           llvm_build_type: RelAssert