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](https://github.com/actions/cache/compare/v3...v4)

diff --git a/.github/workflows/cibuild.yml b/.github/workflows/cibuild.yml
index 1e1915872851e1c05b67ee3f1edbbb98991e791a..23f5f7abcc9b62e03c76cae78c3412c71a423d10 100644 (file)
--- a/.github/workflows/cibuild.yml
+++ b/.github/workflows/cibuild.yml
@@ -225,7 +225,7 @@ jobs:
           echo "OPENWRT_TARGET=${{ matrix.target }}" >> $GITHUB_ENV
       - name: Cache OpenWRT SDK
         id: cache-openwrt-sdk
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/${{ env.OPENWRT_SDK }}
           key: ${{ env.OPENWRT_SDK }}