Type definitions erroneously disallow passing an explicitly readonly array of strings

[lazarljubenovic]

Actual behavior

import glob from 'fast-glob'
declare const options: { readonly patterns: ReadonlyArray<string> }
glob(patterns)
//   ^^^^^^^^
// Argument of type 'readonly string[]' is not assignable to parameter of type 'string | string[]'.
//   The type 'readonly string[]' is 'readonly' and cannot be assigned to the mutable type 'string[]'.

Expected behavior

No error. It's my first time using fast-glob, but I assume it won't actually mutate the array, right?

[mrmlnc]

Will be included in the 4.0.0 release (#371).