refactor: restore checkers property name

Author: pirhoo

prophecies/core/models/task_record.py

@@ -62,14 +62,14 @@ def __str__(self):
         return f'Record #{self.id} to be review in {self.task.name}'
 
     @cached_property
-    def checkers_list(self):
+    def checkers(self):
         checkers = [review.checker for review in self.reviews.all()]
         return  list(filter(None, checkers))
 
     @cached_property
     def checkers_pretty(self):
         # Extract only the usernames
-        usernames = [checker.username for checker in self.checkers_list]
+        usernames = [checker.username for checker in self.checkers]
         count = len(usernames)
         # Use the correct format depending on the count or use `many`
         return {0: lambda u: 'nobody', 1: lambda u: u[0], 2: lambda u: ' and '.join(u), }.\
@@ -99,7 +99,7 @@ def actions(self):
         return Action.objects.public(self.actions_query | self.reviews_actions_query)
 
     def can_lock(self, user):
-        checkers_ids = [checker.id for checker in self.checkers_list]
+        checkers_ids = [checker.id for checker in self.checkers]
         return not self.locked and user.id in checkers_ids
 
     def can_unlock(self, user):