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/build_for_openwrt.yml

@@ -52,7 +52,7 @@ jobs:
  git config --global --add safe.directory $(pwd)
  - name: Restore OpenWrt
  id: restore-openwrt
- uses: actions/cache/restore@v3
+ uses: actions/cache/restore@v4
  with:
  path: ./openwrt-x86-64-generic-rootfs.tar.gz
  key: openwrt
@@ -105,7 +105,7 @@ jobs:
  cp -rf $(find ../openwrt/bin/ -type f -name "openwrt-x86-64-generic-rootfs.tar.gz") ./
  - name: Save OpenWrt
  if: steps.restore-openwrt.outputs.cache-hit != 'true'
- uses: actions/cache/save@v3
+ uses: actions/cache/save@v4
  with:
  path: ./openwrt-x86-64-generic-rootfs.tar.gz
  key: ${{ steps.restore-openwrt.outputs.cache-primary-key }}

.github/workflows/reusable-build-extensions-on-manylinux.yml

@@ -76,11 +76,11 @@ jobs:
  fi
 
  cmake -Bbuild -GNinja -DWASMEDGE_BUILD_TESTS=${build_tests} -DCMAKE_BUILD_TYPE=${build_type} -DWASMEDGE_BUILD_AOT_RUNTIME=OFF -DWASMEDGE_BUILD_TOOLS=OFF -DOPENSSL_ROOT_DIR=$(pwd)/openssl-1.1.1n/openssl
- - uses: actions/cache/save@v3
+ - uses: actions/cache/save@v4
  with:
  key: ${{ steps.prep.outputs.cache_key1 }}
  path: ${{ steps.prep.outputs.cache_path1 }}
- - uses: actions/cache/save@v3
+ - uses: actions/cache/save@v4
  with:
  key: ${{ steps.prep.outputs.cache_key2 }}
  path: ${{ steps.prep.outputs.cache_path2 }}
@@ -105,11 +105,11 @@ jobs:
  run: |
  echo "artifact=WasmEdge-plugin-${{ matrix.plugin }}-${{ inputs.version }}-${{ inputs.docker_tag }}.tar.gz" >> $GITHUB_OUTPUT
  echo "filename=plugin_${{ matrix.plugin }}.tar.gz" >> $GITHUB_OUTPUT
- - uses: actions/cache/restore@v3
+ - uses: actions/cache/restore@v4
  with:
  key: ${{ needs.prepare.outputs.cache_key1 }}
  path: ${{ needs.prepare.outputs.cache_path1 }}
- - uses: actions/cache/restore@v3
+ - uses: actions/cache/restore@v4
  with:
  key: ${{ needs.prepare.outputs.cache_key2 }}
  path: ${{ needs.prepare.outputs.cache_path2 }}