Bump docker/setup-buildx-action from 3 to 4 in /.github/workflows

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3 to 4.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v3...v4)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/docker-pr.yml

@@ -41,7 +41,7 @@ jobs:
       - name: setup platform emulator
         uses: docker/setup-qemu-action@v4
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to DockerHub
         if: github.event.inputs.push_image == 'true'

.github/workflows/docker-release.yml

@@ -62,7 +62,7 @@ jobs:
         uses: docker/setup-qemu-action@v4
 
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to DockerHub
         uses: docker/login-action@v4

.github/workflows/docker.yml

@@ -47,7 +47,7 @@ jobs:
         uses: docker/setup-qemu-action@v4
 
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Generate Docker image metadata
         id: docker-meta