Dear Ronns,
Thank you for raising your question to the Wefugee community!
Your family would have to apply i.e. for a so-called Schengen visa for a short-term visit. I do not think that there are any special visiting regulations connected to your residence permit. On the website of the German embassy in Pakistan you can find more information, how to apply for a Schengen visa: https://pakistan.diplo.de/pk-en/service/visa-shortterm/1673126.
I hope this could help you and good luck for the visa application!
Best,
Meike