mypy

Add `.toml` to `.editorconfig` (#151481) #21904

Job	Run time
Run mypy on Tools/build	14s
Run mypy on Tools/jit	21s
Run mypy on Tools/cases_generator	13s
Run mypy on Lib/_pyrepl	19s
Run mypy on Lib/test/libregrtest	22s
Run mypy on Tools/peg_generator	18s
Run mypy on Tools/check-c-api-docs	13s
Run mypy on Tools/clinic	14s
Run mypy on Lib/tomllib	21s
	2m 35s

Provide feedback