mypy

gh-140849: Update bundled liblzma to 5.8.1 on Windows (#141022) #17774

Job	Run time
Run mypy on Lib/_pyrepl	26s
Run mypy on Lib/test/libregrtest	20s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/peg_generator	21s
Run mypy on Tools/clinic	23s
Run mypy on Lib/tomllib	21s
Run mypy on Tools/jit	24s
Run mypy on Tools/build	24s
	2m 56s

Provide feedback