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/build.yaml

@@ -48,7 +48,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Build and push by digest
         if: github.event_name == 'pull_request'
@@ -136,7 +136,7 @@ jobs:
 
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v3.12.0
+        uses: docker/setup-buildx-action@v4.0.0
 
       - name: Metadata
         id: meta