Bump @fluentui/scheme-utilities from 8.3.39 to 8.3.56

Bumps [@fluentui/scheme-utilities](https://github.com/microsoft/fluentui) from 8.3.39 to 8.3.56.
- [Release notes](https://github.com/microsoft/fluentui/releases)
- [Changelog](https://github.com/microsoft/fluentui/blob/master/azure-pipelines.release-fluentui.yml)
- [Commits](https://github.com/microsoft/fluentui/compare/@fluentui/scheme-utilities_v8.3.39...@fluentui/scheme-utilities_v8.3.56)

---
updated-dependencies:
- dependency-name: "@fluentui/scheme-utilities"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>