build(deps): bump docker/setup-buildx-action from 1 to 2

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 1 to 2.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v1...v2)

---
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/docker.yml

@@ -18,7 +18,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       # https://github.com/docker/setup-buildx-action#usage
-      - uses: docker/setup-buildx-action@v1
+      - uses: docker/setup-buildx-action@v2
       # https://github.com/docker/build-push-action#usage
       - uses: docker/build-push-action@v2
         with: