Bug fix: missing closed comment

Author: JuanCavallin

casino/games/blackjack/blackjack.py

@@ -181,7 +181,7 @@ def play_round(self):
     def reset(self, context = None):
         """
         Resets the round state without destroying player objects.
-        ""
+        """
         if context is not None:
             self.context = context
             self.configurations = context.config