GitHub Action: Bump actions/cache from 5 to 6

Bumps [actions/cache](https://github.com/actions/cache) from 5 to 6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v5...v6)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/codeql.yml

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 07d5129..d874181 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -239,7 +239,7 @@
 

     - name: Attempt to Load CodeQL CLI From Cache

       id: codeqlcli_cache

-      uses: actions/cache@v5

+      uses: actions/cache@v6

       with:

         path: ${{ steps.cache_key_gen.outputs.codeql_cli_ext_dep_dir }}

         key: ${{ steps.cache_key_gen.outputs.codeql_cli_cache_key }}