Update docker.yml

.github/workflows/docker.yml

@@ -77,7 +77,7 @@ jobs:
             - name: Set up Docker Buildx
               uses: docker/setup-buildx-action@v1
             - name: Cache amd64 Docker layers
-              uses: actions/cache@v2
+              uses: actions/cache@v3
               with:
                   path: /tmp/.buildx-cache/linux/amd64
                   key: ${{ runner.os }}-buildx-linux/amd64-${{ github.sha }}