patch
https://api.remberg.de/v1/contacts/
Partially updates an existing contact identified by its unique ID. Supports updating name, email, job position, phone number, and hourly rates. Returns status 209 if the contact was updated but sending the activation or verification email failed.
209Contact updated but sending activation/verification mail was not successful
400Bad Request
403Forbidden
409A remberg user with the same email already exists
