Update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/release-docker.yml

@@ -17,7 +17,7 @@ jobs:
           java-version: 8
           cache: 'sbt'
       - uses: sbt/setup-sbt@v1
-      - uses: docker/setup-buildx-action@v1
+      - uses: docker/setup-buildx-action@v4
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with: