Bump actions/cache from 4 to 5 (#7524)

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/R-CMD-check.yaml

@@ -55,7 +55,7 @@ jobs:
         shell: Rscript {0}
 
       - name: Restore R package cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.R_LIBS_USER }}
           key: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-${{ hashFiles('.github/depends.Rds') }}

.github/workflows/pkgup.yaml

@@ -26,7 +26,7 @@ jobs:
       - uses: r-lib/actions/setup-pandoc@v2
       - uses: r-lib/actions/setup-r@v2
       - name: cache-r-dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ env.R_LIBS_USER }}/*
           key: library-cache-${{ github.run_id }}