mypy

GH-130750: Restore quoting of choices in argparse error messages to m… #21114

Job	Run time
Run mypy on Tools/build	15s
Run mypy on Tools/clinic	12s
Run mypy on Tools/jit	15s
Run mypy on Lib/_pyrepl	19s
Run mypy on Lib/test/libregrtest	19s
Run mypy on Lib/tomllib	10s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/check-c-api-docs	16s
Run mypy on Tools/cases_generator	16s
	2m 19s

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