Bump actions/cache from 4 to 5

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] <support@github.com>

Author: dependabot[bot]

.github/workflows/benchmark.yml

@@ -44,7 +44,7 @@ jobs:
         # Build your program with the given configuration
         run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j
       - name: Download previous benchmark data
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ./cache
           key: ${{ runner.os }}-benchmark

.github/workflows/benchmark_pr.yml

@@ -43,7 +43,7 @@ jobs:
         # Build your program with the given configuration
         run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j
       - name: Download previous benchmark data
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ./cache
           key: ${{ runner.os }}-benchmark