Documentation

Following #106888, the documentation for TestResult.collectedDurations is outdated as it's now a 2-tuple of str and float instances. Noticed in python/typeshed#10636. I will prepare a PR. Cc @bityob.

Linked PRs

• gh-108669: Fix documentation for TestResult.collectedDurations #108670
• [3.12] gh-108669: unittest: Fix documentation for TestResult.collectedDurations (GH-108670) #108672