build(deps): bump actions/cache from 2 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 2 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v2...v4)

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

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

.github/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
           components: "clippy, rustfmt"
           override: true
       - name: Cache registry, build data
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         continue-on-error: false
         with:
           path: |

.github/workflows/release.yml

@@ -51,7 +51,7 @@ jobs:
         with:
           crate: cargo-generate-rpm
       - name: Cargo Cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: cache
         continue-on-error: false
         with: