ci: Bump actions/cache from 5.0.1 to 5.0.2

Bumps [actions/cache](https://github.com/actions/cache) from 5.0.1 to 5.0.2.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/9255dc7a253b0ccc959486e2bca901246202afeb...8b402f58fbc84540c8b491a91e594a4576fec3d7)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/build-linux.yml

@@ -53,7 +53,7 @@ jobs:
         echo "XEMU_BUILD_OPTIONS=${opts[*]}" >> "$GITHUB_ENV"
     - name: Initialize compiler cache
       id: cache
-      uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v4
+      uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v4
       with:
         path: |
           ${{ env.CCACHE_DIR }}

.github/workflows/build-macos.yml

@@ -41,7 +41,7 @@ jobs:
         pip install pyyaml requests
     - name: Initialize compiler, library cache
       id: cache
-      uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v4
+      uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v4
       with:
         path: |
           macos-pkgs

.github/workflows/build-windows.yml

@@ -34,7 +34,7 @@ jobs:
       run: tar -xf xemu-${{ inputs.pkg_version }}.tar.zst --strip-components=2
     - name: Initialize compiler cache
       id: cache
-      uses: actions/cache@9255dc7a253b0ccc959486e2bca901246202afeb # v4
+      uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v4
       with:
         path: |
           ${{ env.CCACHE_DIR }}