feat(linter): eslint/no-misleading-character-class

Implement ESLint's [`no-misleading-character-class`](https://eslint.org/docs/latest/rules/no-misleading-character-class#rule-details) rule.

To get started, run
```sh
just new-rule no-misleading-character-class
```