mypy

gh-141510: Remove unncessary lock holding for frozendict repr (gh-144… #19556

Job	Run time
Run mypy on Tools/clinic	17s
Run mypy on Lib/test/libregrtest	20s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/build	17s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/cases_generator	21s
Run mypy on Tools/jit	19s
Run mypy on Tools/peg_generator	18s
Run mypy on Tools/check-c-api-docs	15s
	2m 43s

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