Bump docker/setup-buildx-action from 1 to 2 (#99)

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](https://github.com/docker/setup-buildx-action/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/teslamate.yml

@@ -44,7 +44,7 @@ jobs:
         platforms: all
     - name: Install buildx
       id: buildx
-      uses: docker/setup-buildx-action@v1
+      uses: docker/setup-buildx-action@v2
       with:
         version: latest
     - name: Available platforms