Bump docker/setup-qemu-action from 2 to 3 (#64)

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

---
updated-dependencies:
- dependency-name: docker/setup-qemu-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/docker.yml

@@ -44,7 +44,7 @@ jobs:
             echo "::set-output name=njs_version::$njs"
 
         - name: Setup QEMU
-          uses: docker/setup-qemu-action@v2
+          uses: docker/setup-qemu-action@v3
           with:
             platforms: arm,arm64,ppc64le,s390x
           if: github.event_name != 'pull_request'