gh-74929: Implement PEP 667 #111109

Job	Run time
Check for source changes	10s
Check if generated files are up to date	4m 36s
Address sanitizer	10m 3s
Ubuntu SSL tests with OpenSSL (1.1.1w)	2m 10s
CIFuzz (address)	19m 30s
Ubuntu SSL tests with OpenSSL (3.0.13)	2m 3s
CIFuzz (undefined)	20m 15s
Ubuntu SSL tests with OpenSSL (3.1.5)	2m 18s
Hypothesis tests on Ubuntu	5m 43s
CIFuzz (memory)	20m 49s
Ubuntu SSL tests with OpenSSL (3.2.1)	2m 0s
Windows (free-threading) / build and test (x64)	21m 44s
Windows (free-threading) / build (arm64)	2m 39s
Windows (free-threading) / build and test (x86)	22m 24s
macOS / build and test (macos-14)	7m 33s
macOS (free-threading) / build and test (macos-14)	10m 34s
macOS / build and test (macos-13)	10m 6s
Ubuntu / build and test	7m 21s
Thread sanitizer / Thread sanitizer	4m 22s
Thread sanitizer (free-threading) / Thread sanitizer	6m 39s
Ubuntu (free-threading) / build and test	10m 20s
Windows / build and test (x64)	16m 1s
Windows / build (arm64)	3m 10s
Windows / build and test (x86)	15m 33s
WASI / build and test	11m 10s
Docs / Docs (Oldest Sphinx)	1m 47s
Docs / Docs	2m 1s
Docs / Doctest	15m 20s
All required checks pass	1s
	4h 18m 22s

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