Update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/publish-docker.yml

@@ -70,7 +70,7 @@ jobs:
         run: mvn spring-boot:build-image -Dspring-boot.build-image.imageName=lrprojects/stick-it-server:${{ steps.compute_version.outputs.tag }} --settings ~/.m2/settings.xml
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to DockerHub
         uses: docker/login-action@v3