mypy

gh-145200: Fix EVP_MAC_CTX leak in hashlib HMAC on init failure (GH-1… #20628

Job	Run time
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Tools/build	16s
Run mypy on Tools/cases_generator	17s
Run mypy on Lib/tomllib	16s
Run mypy on Lib/test/libregrtest	20s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/clinic	18s
Run mypy on Tools/jit	18s
Run mypy on Tools/peg_generator	16s
	2m 36s

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