integration-tests: Add random delay #2

Job	Run time
whitespace-check / check-trailing-whitespace	4s
integration-tests / Integration Tests (windows-2022 / Electron 38.2.2)	2m 35s
integration-tests / Integration Tests (ubuntu-24.04 / Electron 38.2.2)	1m 29s
integration-tests / Integration Tests (windows-2022 / Electron 30.4.0)	2m 53s
integration-tests / Integration Tests (ubuntu-22.04 / Electron 38.2.2)	1m 54s
integration-tests / Integration Tests (macos-14 / Electron 30.4.0)	1m 23s
integration-tests / Integration Tests (ubuntu-22.04 / Electron 30.4.0)	1m 48s
integration-tests / Integration Tests (macos-15-intel / Electron 38.2.2)	2m 24s
integration-tests / Integration Tests (windows-2025 / Electron 38.2.2)	4m 33s
integration-tests / Integration Tests (macos-14 / Electron 38.2.2)	1m 23s
integration-tests / Integration Tests (windows-2025 / Electron 30.4.0)	2m 49s
integration-tests / Integration Tests (ubuntu-24.04 / Electron 30.4.0)	1m 33s
integration-tests / Integration Tests (macos-15-intel / Electron 30.4.0)	2m 12s
integration-tests / Integration Tests (macos-26 / Electron 38.2.2)	1m 56s
integration-tests / Integration Tests (macos-26 / Electron 30.4.0)	1m 55s
integration-tests / Test Results	37s
build	2m 50s
	34m 18s

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