Tests

gh-121023: Improve `_xxtestfuzz/README.rst` #125367

Job	Run time
Change detection / Compute changed files	9s
Check if generated files are up to date	0s
Docs	0s
Windows ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Ubuntu ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Windows MSI${{ '' }}	0s
Address sanitizer	0s
macOS ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Thread sanitizer	0s
Ubuntu SSL tests with OpenSSL	0s
WASI	0s
Hypothesis tests on Ubuntu	0s
CIFuzz (address)	20m 10s
Thread sanitizer (free-threading)	0s
CIFuzz (undefined)	20m 46s
CIFuzz (memory)	20m 50s
All required checks pass	3s
	1h 1m 58s

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