Filter some arguments out in transition

To avoid passing unneeded arguments to `transition_*` functions, catch
them in `transition` with keyword arguments.

Author: jakirkham

distributed/scheduler.py

@@ -5974,7 +5974,9 @@ def remove_key(self, key):
         ts._exception_blame = ts._exception = ts._traceback = None
         self.task_metadata.pop(key, None)
 
-    def transition(self, key, finish, *args, **kwargs):
+    def transition(
+        self, key, finish, *args, status=None, thread=None, metadata=None, **kwargs
+    ):
         """Transition a key from its current state to the finish state
 
         Examples