test: fix flaky insurance request test in OfflineFirstChatRepositoryTest

[AndyScherzinger]

Fixes the flaky unit test OfflineFirstChatRepositoryTest > insurance requests resume with the next tick after the chat is resumed, which fails intermittently on CI with WantedButNotInvoked (e.g. run 39053012463 on #6500, and run 39041491912 on an earlier version of the same Renovate commit that also passed in another run).

Cause: the test advances virtual time with runTest, then verifies right after runCurrent() that pullChatMessages was called once. The insurance request goes through ChatMessageSyncer's pull flow, which runs .flowOn(Dispatchers.IO). runCurrent() only drains the test dispatcher, so on a busy runner the verify could run before the IO thread reached the network mock.

Fix: verify with timeout(AWAIT_TIMEOUT_MILLIS).times(1), the same pattern the long polling test in this class already uses. Test-only change, no production code touched.

Verified: with a temporary Thread.sleep(300) before the network call in ChatMessageSyncer, the old test fails reproducibly and the fixed one passes. Without it, the whole class passes repeatedly; ktlint and detekt are clean.

🖼️ Screenshots

🏚️ Before	🏡 After
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🚧 TODO

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🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not needed
• 🔖 Capability is checked or not needed
• 🔙 Backport requests are created or not needed: /backport to stable-xx.x
• 📅 Milestone is set
• 🌸 PR title is meaningful (if it should be in the changelog: is it meaningful to users?)

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[github-actions]

Codacy

Lint

Type	master	PR
Warnings	138	138
Errors	15	15

SpotBugs

Category	Base	New
Bad practice	7	7
Correctness	8	8
Dodgy code	40	40
Internationalization	3	3
Malicious code vulnerability	3	3
Performance	8	8
Security	11	11
Total	80	80

[github-actions]

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