chore: replace deprecated stylistic plugin

[l2ysho]

Changes

• Replace @stylistic/eslint-plugin-ts with @stylistic/eslint-plugin in package.json
• Update import and plugin reference in eslint.config.mjs

Why

The @stylistic/eslint-plugin-ts package has been deprecated.

This package is deprecated in favor of the unified @stylistic/eslint-plugin, please consider migrating to the main package

[B4nan]

thanks!