Bump docker/setup-buildx-action from 3.12.0 to 4.0.0

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.12.0 to 4.0.0.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v3.12.0...v4.0.0)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/container.yml

@@ -69,7 +69,7 @@ jobs:
         uses: docker/setup-qemu-action@v4.0.0
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Login to Docker Hub
         uses: docker/login-action@v4.0.0