style: pre-commit fixes

Author: pre-commit-ci[bot]

src/awkward/_reducers.py

@@ -77,11 +77,10 @@ def _promote_integer_rank(cls, given_dtype: DTypeLike) -> DTypeLike:
             return given_dtype
 
     def get_platform_integer_dtype():
-    # Typically, np.intp is used to represent the platform integer type
+        # Typically, np.intp is used to represent the platform integer type
         return np.dtype(np.intp)
 
 
-
 def apply_positional_corrections(
     reduced: ak.contents.NumpyArray,
     parents: ak.index.Index,