ci(deps): 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/benchmarks.yml

@@ -33,7 +33,7 @@ jobs:
           key: benches-${{ runner.os }}-unit_fluvio_protocol-rust
 
       - name: Cache Benchmark data
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         if: github.ref == 'refs/heads/master'
         with:
           path: ./benches_cache
@@ -76,7 +76,7 @@ jobs:
           key: benches-${{ runner.os }}-unit_fluvio_smartmodule-rust
 
       - name: Cache Benchmark data
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         if: github.ref == 'refs/heads/master'
         with:
           path: ./benches_cache