[v12] Fix `TestHeadlessAuthenticationWatcher` flakiness#24705

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Joerger merged 4 commits into

bot/backport-24562-branch/v12

Apr 19, 2023

Commits on Apr 17, 2023

Extend time between put events in headless watcher test to avoid marking waiters as stale by accident.

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Restructure headless authentication watcher to eliminate race conditions in tests.

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Resolve comments.

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Resolve comments.

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