Series mask method's "other" parameter does not accept pandas.NA

[jasonboh]

Describe the bug
Series.mask() method's "other" parameter does not accept pandas.NA, even though it is indeed valid to use pd.NA.

To Reproduce
import pandas as pd
series = pd.Series([1, 2, 3], dtype="Int64")
series = series.mask([True, False, False], other=pd.NA) # pyright reports the below error

Argument of type "NullableScalar" cannot be assigned to parameter "other" of type "Scalar | Series[Unknown] | DataFrame | ((...) -> Unknown)" in function "mask"
  Type "NullableScalar" cannot be assigned to type "Scalar | Series[Unknown] | DataFrame | ((...) -> Unknown)"
    Type "NAType" cannot be assigned to type "Scalar | Series[Unknown] | DataFrame | ((...) -> Unknown)"
      "NAType" is incompatible with "str"
      "NAType" is incompatible with "bytes"
      "NAType" is incompatible with "date"
      "NAType" is incompatible with "datetime"
      "NAType" is incompatible with "timedelta"
      "NAType" is incompatible with "datetime64"
...

Please complete the following information:

• OS: Windows
• OS Version 10
• python version 3.10
• version of type checker pyright with Pylance v2023.5.20
• version of installed pandas-stubs 2.0.1.230501

Additional context
Add any other context about the problem here.

[Dr-Irv]

Need to add None | NAType here:

pandas-stubs/pandas-stubs/core/series.pyi

Line 1412 in 621891b

other: Scalar | Series[S1] | DataFrame | Callable = ...,