Bump actions/cache from 5.1.0 to 6.1.0

Bumps [actions/cache](https://github.com/actions/cache) from 5.1.0 to 6.1.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@caa2961...55cc834)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 6.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -140,7 +140,7 @@ jobs:
       # images are. The inputs below are the same ones v4 accepted.
       - name: Cache the SonarCloud cache
         if: needs.check-sonar-token.outputs.has-token == 'true'
-        uses: actions/cache@caa296126883cff596d87d8935842f9db880ef25 # v5
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar