request(ratelimits): data export/inport support

[JuanPablo2655]

Is there an existing issue or pull request for this?

• [X] I have searched the existing issues and pull requests

Feature description

I want to export ratelimit data and save them in a database when my application goes offline and have the ability to import it back once the application comes back online.

Desired solution

For rateLimitManager to have an export and import function.

Alternatives considered

I haven't concidered any other alternatives because the sapphire framework has cooldowns already built-in that use this library.

Additional context

No response

[favna]

I'm down for adding this feature but running timers are not serializable, they use setInterval https://github.com/sapphiredev/utilities/blob/b8a7f1abc6ba3c676cd0de716e99e1e0b3b5a4a4/packages/ratelimits/src/lib/RateLimitManager.ts#L53-L56

I have no idea how this can be realised.