Tests

docs: add `s += t`/`s *= n` Operation #176573

Job	Run time
Change detection / Create context from changed files	13s
Check if Autoconf files are up to date	0s
Ubuntu ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }} ${{ ((fromJSON(matrix.bolt) && '(bolt)') \|\| '') }}	0s
Ubuntu SSL tests with AWS-LC	-1s
Cross build Linux	-1s
Sanitizers${{ '' }}	-1s
Android (${{ matrix.arch }})	-1s
Windows ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	-1s
Docs / Doctest	5m 6s
Check if generated files are up to date	-1s
Docs / Docs	1m 43s
Docs / Check EPUB	2m 0s
CIFuzz	-1s
Address sanitizer	-1s
WASI	-1s
Windows MSI${{ '' }}	-1s
Ubuntu SSL tests with OpenSSL	-1s
macOS ${{ ((fromJSON(matrix.free-threading) && '(free-threading)') \|\| '') }}	-1s
Hypothesis tests on Ubuntu	-1s
iOS	-1s
All required checks pass	5s
	8m 53s

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