fix: remove unnecessary TypeScript peer dependency

[myakura]

Summary

Widens peerDependencies.typescript from ^5.0.0 to *.

Background

The typescript package is only used for type-checking during development — the plugin's source never imports it, and the published lib/index.js is a self-contained esbuild bundle with no .d.ts output. Despite that, pinning the peer range to ^5.0.0 makes consumers on TypeScript 6 hit an unmet-peer warning, as reported in #19, and can end up being a reason a downstream project can't upgrade its own TypeScript version.

textlint-scripts, itself a dependency of this plugin, already treats typescript as an optional peer with a permissive "*" range. This change aligns the plugin with that same policy.

Test plan

• bun run tsc
• bun run ci (biome)
• bun run build
• bun run test -- --run

Closes #19

[myakura]

Hi @3w36zj6, thanks for maintaining this project! Whenever you have a moment, could you please take a look at this PR? I also have two earlier PRs still open — #12 and #13 — if you're able to review those as well, that would be much appreciated. No rush at all, thank you!

[3w36zj6]

This package is a plugin for textlint and does not ship any TypeScript declarations, so TypeScript should be treated solely as a development dependency.