fix mypy

Author: cameronangliss

src/poke_env/battle/abstract_battle.py

@@ -775,9 +775,9 @@ def parse_message(self, split_message: List[str]):
                 self.get_pokemon(target).item = None
             elif effect == "item: Leppa Berry":
                 mon = self.get_pokemon(target)
-                move = mon.moves[to_id_str(event[4])]
+                mv = mon.moves[to_id_str(event[4])]
                 # Don't let current pp exceed max pp
-                move._current_pp = min(move._current_pp + 10, move.max_pp)
+                mv._current_pp = min(mv._current_pp + 10, mv.max_pp)
             elif target != "":  # ['', '-activate', '', 'move: Splash']
                 self.get_pokemon(target).start_effect(effect)
         elif event[1] == "-status":