⬆️ Bump actions/cache from 6.0.0 to 6.1.0

Bumps [actions/cache](https://github.com/actions/cache) from 6.0.0 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@2c8a9bd...55cc834)

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

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

Author: dependabot[bot]

.github/workflows/unit_tests.yml

@@ -119,7 +119,7 @@ jobs:
         env:
           cache-name: cpm-cache-0
         id: cpm-cache-restore
-        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6.0.0
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/cpm-cache
           key: ${{runner.os}}-${{env.cache-name}}-${{ hashFiles('**/CMakeLists.txt', 'cmake/**') }}
@@ -170,7 +170,7 @@ jobs:
       - name: Restore uv cache
         env:
           cache-name: uv-cache-0
-        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6.0.0
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ${{env.UV_CACHE_DIR}}
           key: ${{runner.os}}-${{env.cache-name}}-${{ hashFiles('uv.lock') }}