Missing endpoint payments of payment-links

[mattickx]

Add missing endpoint https://api.mollie.com/v2/payment-links/{id}/payments to the mollie node client.

Docs:
https://docs.mollie.com/reference/get-payment-link-payments

Related discord topics:
https://discord.com/channels/1037712581407817839/1288507180122640456
https://discord.com/channels/1037712581407817839/1288137318691242058
https://discord.com/channels/1037712581407817839/1166419761060646942
https://discord.com/channels/1037712581407817839/1057291926786801735

As requested by Flo on discord, adding it here as an issue to keep track of it.

Maybe worth it to document which endpoints are missing.
Or at least implement it with a throw throw new Error('Not yet implemented')

[fjbender]

Maybe possible to squeeze in https://github.com/mollie/mollie-api-node/milestone/6, too @Pimm?

[janpaepke]

The main extension currently for 4.2.0 is the addition of the terminals API.
This one is far more extensive but it still might make sense to do it in the same release.
I will mark it for 4.2.0 for now, but suggest to bump it to 4.3.0 if this turns out to significantly delay the release.

Please also be advised that there is currently no fixed schedule for 4.2.0

@mattickx: We strive to keep the client as up to date as possible. The added overhead of managing missing or disabled endpoints in the code often is on par or even exceeds the efforts needed to just implement them for real. This is why we generally try to avoid this.