fix pyupgrade

Author: topper-123

pandas/core/indexes/numeric.py

@@ -57,7 +57,7 @@ class NumericIndex(Index):
     _is_numeric_dtype = True
     _can_hold_strings = False
 
-    def __new__(cls, data=None, dtype: Optional[Dtype] = None, copy=False, name=None):
+    def __new__(cls, data=None, dtype: Dtype | None = None, copy=False, name=None):
         name = maybe_extract_name(name, data, cls)
 
         subarr = cls._ensure_array(data, dtype, copy)