Make HyperlinkedModelSerializer generic (#595)

Co-authored-by: Nikita Sobolev <[email protected]>

Author: intgr

rest_framework-stubs/serializers.pyi

@@ -263,4 +263,4 @@ class ModelSerializer(Serializer, BaseSerializer[_MT]):
     def get_unique_together_validators(self) -> list[UniqueTogetherValidator]: ...
     def get_unique_for_date_validators(self) -> list[BaseUniqueForValidator]: ...
 
-class HyperlinkedModelSerializer(ModelSerializer): ...
+class HyperlinkedModelSerializer(ModelSerializer[_MT]): ...