[Types] `ICookie` `get` and `getAll()` could benefit from generics

[randompch]

Hi everyone,

ICookie could benefit from generics as its cousin cookie-universal-nuxt does.

Not a big deal but right now I'm forced to extend ICookie within my project, so having it native would be much better 💪

import type { ICookie, ICookieGetOpts } from 'cookie-universal';

export interface CookieExtended extends ICookie {
  get<T = any>(name: string, options?: ICookieGetOpts): T;
  getAll<T = object>(options?: ICookieGetOpts): T;
}