internal: add lost week in interval __str__

Author: ArtDu

tarantool/msgpack_ext/types/interval.py

@@ -231,7 +231,7 @@ def __eq__(self, other):
         return True
 
     def __repr__(self):
-        return f'tarantool.Interval(year={self.year}, month={self.month}, day={self.day}, ' + \
+        return f'tarantool.Interval(year={self.year}, month={self.month}, week={self.week}, day={self.day}, ' + \
                f'hour={self.hour}, minute={self.minute}, sec={self.sec}, ' + \
                f'nsec={self.nsec}, adjust={self.adjust})'