chore(deps): update docker/setup-buildx-action action to v4 (#45)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docker.yaml

@@ -23,7 +23,7 @@ jobs:
         run: echo "VERSION=$(awk -F= '/^ARG SQLCMD_VERSION/ {print $2}' Dockerfile)" >> $GITHUB_OUTPUT
 
       - uses: docker/setup-qemu-action@v4
-      - uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-buildx-action@v4
 
       - name: Login to Docker Hub
         uses: docker/login-action@v4