Tests

gh-137597: Clarify flattening and bugfix for itertools.tee #163257

Job	Run time
Change detection / Create context from changed files	14s
macOS ${{ fromJSON(matrix.free-threading) && '(free-threading)' \|\| '' }}	0s
WASI	0s
Check if Autoconf files are up to date	0s
CIFuzz	0s
Check if generated files are up to date	0s
Windows MSI${{ '' }}	0s
Ubuntu SSL tests with OpenSSL	0s
Address sanitizer	0s
Ubuntu SSL tests with AWS-LC	0s
Ubuntu ${{ fromJSON(matrix.free-threading) && '(free-threading)' \|\| '' }} ${{ fromJSON(matrix.bolt) && '(bolt)' \|\| '' }}	0s
Windows ${{ fromJSON(matrix.free-threading) && '(free-threading)' \|\| '' }}	0s
Docs / Docs	1m 48s
Docs / Doctest	5m 58s
Docs / Check EPUB	2m 3s
Sanitizers${{ '' }}	0s
Cross build Linux	0s
Hypothesis tests on Ubuntu	0s
All required checks pass	4s
	10m 7s

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