[3.13] gh-116742: Fix subprocess test_check_output_timeout() (GH-130836) #130873
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Fix a race condition in test_check_output_timeout() of
test_subprocess. Don't write into stdout anymore, since there is no
reliable way to synchronize the parent and the child processes.
Change the timeout from 3 seconds to 0.1 seconds, and remove
@requires_resource('walltime') decorator.
(cherry picked from commit 67a942d)
Co-authored-by: Victor Stinner [email protected]