Re-enable Time Delay Test

[yuhaoth]

Description

Time delay tests can make sure "get time" functions work correctly. But they are affected by random signal and time adjustment. This PR try to do the tests 3 times, if all fail, the test will fail.

Gatekeeper checklist

• [ ] changelog provided, or not required
• [ ] backport done, or not required
• [ ] tests provided, or not required

Notes for the submitter

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