updated People.profiles to work with new service-id auth

Author: itsklimov

hibob/endpoints/People.py

@@ -129,9 +129,9 @@ def profiles(self, sort_by="firstName"):
             sort_by (str): optional field name to sort by, defaults to firstName
 
         References:
-            https://apidocs.hibob.com/reference#get_profiles
+            https://apidocs.hibob.com/reference/get_profiles
         """
-        return self.client.get("profiles", query={"sortBy": sort_by})
+        return self.client.post("profiles", json_body={"sortBy": sort_by})
 
     def read_avatar(self, email):
         """