mypy

gh-137777: Disband the 'Program Frameworks' chapter (#137796) #16181

Job	Run time
Run mypy on Tools/build	14s
Run mypy on Lib/test/libregrtest	24s
Run mypy on Tools/cases_generator	16s
Run mypy on Lib/_pyrepl	17s
Run mypy on Lib/tomllib	13s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/jit	26s
Run mypy on Tools/clinic	23s
	2m 30s

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