Update docker/setup-buildx-action action to v4

.github/workflows/publish-container.yml

@@ -32,7 +32,7 @@ jobs:
           echo "tags=${TAGS}" >> $GITHUB_OUTPUT
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to GitHub Packages Docker Registry
         uses: docker/login-action@v3
@@ -42,7 +42,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build / push
-        uses: docker/build-push-action@v7
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./Dockerfile