Merge pull request #466 from chimeraphp/renovate/actions-cache-4.x

Update actions/cache action to v4

.github/workflows/tests.yml

@@ -15,7 +15,7 @@ jobs:
         uses: docker/[email protected]
 
       - name: Cache Docker layers
-        uses: actions/cache@v3.3.3
+        uses: actions/cache@v4.0.0
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}