gh-116417: Add _testlimitedcapi C extension #105339

Job	Run time
Check for source changes	10s
Check if generated files are up to date	4m 57s
Docs	0s
Address sanitizer	8m 12s
Ubuntu SSL tests with OpenSSL (1.1.1w)	1m 57s
CIFuzz (address)	19m 35s
Hypothesis tests on Ubuntu	4m 59s
Ubuntu SSL tests with OpenSSL (3.0.13)	1m 59s
CIFuzz (undefined)	21m 4s
Ubuntu SSL tests with OpenSSL (3.1.5)	2m 7s
CIFuzz (memory)	22m 1s
Ubuntu SSL tests with OpenSSL (3.2.1)	2m 7s
Windows / build and test (x64)	14m 2s
Windows / build (arm64)	2m 2s
Windows / build and test (x86)	13m 30s
Windows (free-threading) / build and test (x64)	24m 39s
Windows (free-threading) / build and test (x86)	23m 59s
Windows (free-threading) / build (arm64)	2m 34s
macOS / build and test (macos-14)	6m 37s
macOS / build and test (macos-13)	11m 1s
macOS (free-threading) / build and test (macos-14)	8m 48s
Ubuntu / build and test	7m 0s
macOS (free-threading) / build and test (macos-13)	33m 58s
Ubuntu (free-threading) / build and test	7m 55s
All required checks pass	1s
	4h 5m 14s

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