Bump @eslint/plugin-kit from 0.2.1 to 0.2.3 in /frontend

Bumps [@eslint/plugin-kit](https://github.com/eslint/rewrite) from 0.2.1 to 0.2.3.
- [Release notes](https://github.com/eslint/rewrite/releases)
- [Changelog](https://github.com/eslint/rewrite/blob/main/release-please-config.json)
- [Commits](eslint/rewrite@plugin-kit-v0.2.1...plugin-kit-v0.2.3)

---
updated-dependencies:
- dependency-name: "@eslint/plugin-kit"
  dependency-type: indirect
...

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