Bump actions/cache in the patch group across 1 directory

Bumps the patch group with 1 update in the / directory: [actions/cache](https://github.com/actions/cache).


Updates `actions/cache` from 5.0.3 to 5.0.4
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@cdf6c1f...6682284)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: patch
...

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

Author: dependabot[bot]

.github/workflows/phs_style_and_document.yaml

@@ -67,7 +67,7 @@ jobs:
         shell: Rscript {0}
 
       - name: Cache styler
-        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
         with:
           path: ${{ steps.styler-location.outputs.location }}
           key: ${{ runner.os }}-styler-${{ github.sha }}