Update docker/setup-buildx-action action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -210,7 +210,7 @@ jobs:
             type=semver,pattern={{major}}
             type=sha
 
-      - uses: docker/setup-buildx-action@v3.12.0
+      - uses: docker/setup-buildx-action@v4.0.0
 
       - uses: docker/login-action@v4.0.0
         with:
@@ -264,7 +264,7 @@ jobs:
           pattern: digests-*
           merge-multiple: true
 
-      - uses: docker/setup-buildx-action@v3.12.0
+      - uses: docker/setup-buildx-action@v4.0.0
 
       - uses: docker/metadata-action@v5.10.0
         id: meta