Bump blessed from 1.41.0 to 1.42.0 in /is-unicode-supported

Bumps [blessed](https://github.com/jquast/blessed) from 1.41.0 to 1.42.0.
- [Release notes](https://github.com/jquast/blessed/releases)
- [Changelog](https://github.com/jquast/blessed/blob/master/docs/history.rst)
- [Commits](jquast/blessed@1.41...1.42)

---
updated-dependencies:
- dependency-name: blessed
  dependency-version: 1.42.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]