mypy

gh-148235: remove duplicate uops `_LOAD_CONST_UNDER_INLINE(_BORROW)` in JIT #20503

Job	Run time
Run mypy on Tools/build	17s
Run mypy on Tools/check-c-api-docs	19s
Run mypy on Lib/_pyrepl	17s
Run mypy on Lib/tomllib	17s
Run mypy on Lib/test/libregrtest	21s
Run mypy on Tools/cases_generator	18s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/clinic	17s
Run mypy on Tools/jit	17s
	2m 40s

Provide feedback