Update test_trainer.py

Author: williamFalcon

tests/trainer/test_trainer.py

@@ -666,7 +666,7 @@ def __init__(self):
             super().__init__()
             self.exc_info = None
 
-        def on_interrupted(self, trainer, pl_module):
+        def on_interrupt(self, trainer, pl_module):
             self.exc_info = sys.exc_info()
 
     interrupt_callback = InterruptCallback()