mypy

gh-149953: Fix null pointer dereference order in `code_objects.c` (#1… #21374

Job	Run time
Run mypy on Lib/test/libregrtest	22s
Run mypy on Tools/clinic	18s
Run mypy on Tools/cases_generator	21s
Run mypy on Tools/jit	19s
Run mypy on Tools/peg_generator	22s
Run mypy on Tools/check-c-api-docs	16s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/build	21s
Run mypy on Lib/tomllib	16s
	2m 53s

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