[Bug]: Standardise Sparkassen Group custom GoCardless handlers

### Verified issue does not already exist?

- [x] I have searched and found no existing issue

### What happened?

I am self hosting actual in docker and use GoCardless in Germany. When I sync accounts from "Sparkasse" the payee names are not the same as in viewed in the online banking. Also not booked transactions are completely useless.
I think someone has already solved this for a specific bank of the Sparkassen Group which should be same for all others. I found some code in packages/sync-server/src/app-gocardless/banks
/ssk_dusseldorf_dussdeddxxx.js that would match.
I think the easiest would be just to add the bank IDs which i saw the behavior on: SPK_DUEREN_SDUEDE33XXX and KSK_KOELN_COKSDE33XXX

### How can we reproduce the issue?

Syncing any bank account from the german Sparkassen over GoCardless.

### Where are you hosting Actual?

Docker

### What browsers are you seeing the problem on?

Chrome

### Operating System

None