Update actions/cache action to v4

.github/workflows/docker.yml

@@ -27,7 +27,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       # Setup build cache
       - name: Cache Docker layers
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-single-buildx-${{ github.sha }}