build(deps): bump actions/cache from 3 to 4

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/linux.yml

@@ -21,7 +21,7 @@ jobs:
         submodules: recursive
 
     - name: Setup ccache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         key: ${{ matrix.os }}
         path: ${{ env.CCACHE_DIR }}

.github/workflows/macos-linux-conda.yml

@@ -29,7 +29,7 @@ jobs:
       with:
         submodules: recursive
 
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       with:
         path: ${{ env.CCACHE_DIR }}
         key: ccache-conda-${{ matrix.os }}-${{ matrix.build_type }}

.github/workflows/ros-ci.yml

@@ -33,7 +33,7 @@ jobs:
         with:
           submodules: recursive
       # This step will fetch/store the directory used by ccache before/after the ci run
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ${{ env.CCACHE_DIR }}
           key: ccache-${{ matrix.env.ROS_DISTRO }}-${{ matrix.env.ROS_REPO }}