gh-106948: Update documentation nitpick_ignore for c:identifer domain #82266

Job	Run time
Check for source changes	11s
Windows (x64)	0s
Check if generated files are up to date	0s
Windows (x86)	0s
macOS	0s
Ubuntu	0s
Ubuntu SSL tests with OpenSSL	0s
Hypothesis tests on Ubuntu	0s
Address sanitizer	0s
Docs / Docs (Oldest Sphinx)	2m 24s
Docs / Doctest	9m 8s
Docs / Docs	2m 21s
All required checks pass	2s
	14m 6s

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