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

Author: renovate[bot]

.github/workflows/integration-test.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
         with:
           install: true