build(deps): bump docker/setup-buildx-action from 1 to 2 (#22)

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>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/release-snapshot.yaml

@@ -24,7 +24,7 @@ jobs:
         uses: docker/setup-qemu-action@v1
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
       - name: Available platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
       - name: Setup Go

.github/workflows/release.yaml

@@ -135,7 +135,7 @@ jobs:
         uses: docker/setup-qemu-action@v1
       - name: Set up Docker Buildx
         id: buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
       - name: Available platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
       - name: Setup Go