build(deps): bump docker/setup-buildx-action from 2 to 3

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2 to 3.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](https://github.com/docker/setup-buildx-action/compare/v2...v3)

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

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

.github/workflows/build.yml

@@ -94,7 +94,7 @@ jobs:
             org.opencontainers.image.description=The toolkit to pack, ship, store, and distribute container content
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
         id: pages
         uses: actions/configure-pages@v4
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: Build docs
         uses: docker/bake-action@v3
         with: