gh-101100: Fix Sphinx warnings in `library/faulthandler.rst` #110385

Job	Run time
Check for source changes	10s
macOS	0s
Windows	0s
Check if generated files are up to date	0s
Windows (free-threading)	0s
macOS (free-threading)	0s
Ubuntu	0s
Ubuntu (free-threading)	0s
Ubuntu SSL tests with OpenSSL	0s
WASI	0s
Address sanitizer	0s
Thread sanitizer	0s
Thread sanitizer (free-threading)	0s
Hypothesis tests on Ubuntu	0s
CIFuzz	0s
Docs / Docs	2m 4s
Docs / Docs (Oldest Sphinx)	1m 58s
Docs / Doctest	13m 50s
All required checks pass	3s
	18m 5s

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