mypy

gh-153141: Fix mutable default argument in _SharedMemoryTracker.__ini… #22337

Job	Run time
Run mypy on Tools/jit	42s
Run mypy on Tools/build	33s
Run mypy on Tools/peg_generator	31s
Run mypy on Tools/clinic	31s
Run mypy on Tools/cases_generator	31s
Run mypy on Lib/tomllib	32s
Run mypy on Lib/_pyrepl	38s
Run mypy on Tools/check-c-api-docs	27s
Run mypy on Lib/test/libregrtest	32s
	4m 57s

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