add correct error type

Author: mustafasoylu

src/somesy/rust/writer.py

@@ -89,7 +89,7 @@ def _to_person(person_obj: str) -> Person:
         """Parse rust person string to a Person. It has format "full name <email>." but email is optional."""
         try:
             return Person.from_name_email_string(person_obj)
-        except ValueError:
+        except (ValueError, AttributeError):
             return None
 
     @classmethod