mypy

gh-149977: Fix extra output of `-m test test_lazy_import`, again (#15… #21743

Job	Run time
Run mypy on Tools/cases_generator	19s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/clinic	22s
Run mypy on Tools/jit	21s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/build	18s
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Lib/test/libregrtest	20s
Run mypy on Tools/peg_generator	18s
	2m 51s

Provide feedback