chore: upgrade eslint to v9.10.0 · koajs/router@7146a7d

Use `undefined` instead of `null`

Prefer `String#replaceAll()` over `String#replace()`

Use the rest parameters instead of 'arguments'

Prefer `.at(…)` over `[….length - index]`

Prefer `.at(…)` over `[….length - index]`

Unexpected function expression

Array.prototype.some() expects a value to be returned at the end of arrow function

Prefer `String#replaceAll()` over `String#replace()`

Unnecessary '.apply()'

Use the spread operator instead of '.apply()'

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v3, actions/setup-node@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Unexpected 'todo' comment: 'TODO: take a look on...'

Too many nested callbacks (5). Maximum allowed is 4

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