[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

oommfc/drivers/hysteresisdriver.py

@@ -73,7 +73,7 @@ def _checkargs(self, **kwargs):
         if n - 1 <= 0:  # OOMMF counts steps, not points (n -> n-1)
             msg = f"Cannot drive with {n=}."
             raise ValueError(msg)
-        
+
     def _check_system(self, system):
         """Checks the system has energy in it"""
         if len(system.energy) == 0: