Bump unic-langid from 0.9.1 to 0.9.4

Bumps [unic-langid](https://github.com/zbraniecki/unic-locale) from 0.9.1 to 0.9.4.
- [Release notes](https://github.com/zbraniecki/unic-locale/releases)
- [Commits](https://github.com/zbraniecki/unic-locale/commits/unic-locale@0.9.4)

---
updated-dependencies:
- dependency-name: unic-langid
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]