mypy

gh-137153: Add `latin_N` aliases to `encodings.aliases` (#136701) #16335

Job	Run time
Run mypy on Lib/_pyrepl	23s
Run mypy on Tools/cases_generator	31s
Run mypy on Tools/peg_generator	19s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/build	19s
Run mypy on Tools/clinic	16s
Run mypy on Tools/jit	21s
Run mypy on Lib/test/libregrtest	18s
	2m 45s

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