Doc: fix a URL redirect #130051

Job	Run time
Change detection / Compute changed files	10s
Windows ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Windows MSI${{ '' }}	0s
Check if generated files are up to date	0s
macOS ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Ubuntu ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	0s
Ubuntu SSL tests with OpenSSL	0s
Check if Autoconf files are up to date	0s
Address sanitizer	0s
Thread sanitizer	0s
WASI	0s
Hypothesis tests on Ubuntu	0s
Thread sanitizer (free-threading)	0s
CIFuzz	0s
Docs / Docs	1m 49s
Docs / Docs (Oldest Sphinx)	2m 3s
Docs / Doctest	18m 34s
All required checks pass	2s
	22m 38s

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