Bump actions/cache from 1.1.0 to 4.3.0 (#87)

Bumps [actions/cache](https://github.com/actions/cache) from 1.1.0 to 4.3.0.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v1.1.0...v4.3.0)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 4.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/focal_build.yml

@@ -47,7 +47,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v1.1.0
+        uses: actions/cache@v4.3.0
         with:
           path: ${{ env.CI_NAME }}/.ccache
           key: ${{ env.CI_NAME }}-ccache-${{ steps.ccache_cache_timestamp.outputs.timestamp }}

.github/workflows/nightly.yml

@@ -60,7 +60,7 @@ jobs:
           message("::set-output name=timestamp::${current_date}")
 
       - name: ccache cache files
-        uses: actions/cache@v1.1.0
+        uses: actions/cache@v4.3.0
         with:
           path: ${{ matrix.env.CI_NAME }}/.ccache
           key: ${{ matrix.env.CI_NAME }}-ccache-${{ steps.ccache_cache_timestamp.outputs.timestamp }}