Bump actions/cache from 5.0.4 to 5.0.5

Bumps [actions/cache](https://github.com/actions/cache) from 5.0.4 to 5.0.5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v5.0.4...v5.0.5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/validate-links-on-push-pr.yml

@@ -15,7 +15,7 @@ jobs:
 
       - name: Restore lychee cache
         id: restore-cache
-        uses: actions/cache/restore@v5.0.4
+        uses: actions/cache/restore@v5.0.5
         with:
           path: .lycheecache
           key: cache-lychee-${{ github.sha }}
@@ -35,7 +35,7 @@ jobs:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
       - name: Save lychee cache
-        uses: actions/cache/save@v5.0.4
+        uses: actions/cache/save@v5.0.5
         if: always()
         with:
           path: .lycheecache