Update docker/setup-buildx-action action to v3.8.0

Author: renovate[bot]

.github/workflows/client-ui.yml

@@ -76,7 +76,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4.2.2
 
-      - uses: docker/setup-buildx-action@v3.7.1
+      - uses: docker/setup-buildx-action@v3.8.0
         with:
           # renovate: datasource=github-releases depName=docker/buildx
           version: "v0.19.3"