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

Author: renovate[bot]

.github/workflows/integration.yml

@@ -50,7 +50,7 @@ jobs:
       scw_image: ${{ steps.meta.outputs.scw_image }}
     steps:
       - uses: actions/checkout@main
-      - uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-buildx-action@v4
 
       - name: Login to GHCR
         if: github.event_name == 'push'