mypy

gh-144888: Don't invalidate executors during function deallocation (#… #10189

Job	Run time
Run mypy on Lib/test/libregrtest	21s
Run mypy on Lib/tomllib	20s
Run mypy on Tools/build	17s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/cases_generator	16s
Run mypy on Tools/jit	19s
Run mypy on Tools/check-c-api-docs	15s
Run mypy on Tools/clinic	19s
Run mypy on Tools/peg_generator	19s
	2m 44s

Provide feedback