Fix BackgroundDataStoreProcessor test failure #20686

Job	Run time
Build only (Android)	14m 40s
Build only (iOS)	6m 18s
Test (Windows, windows-latest, SingleThread)	27m 48s
Code Quality	4m 18s
Test (Windows, windows-latest, MultiThreaded)	33m 22s
Test (macOS, macos-latest, SingleThread)	31m 25s
Test (macOS, macos-latest, MultiThreaded)	59m 8s
Test (Linux, ubuntu-latest, SingleThread)	21m 13s
Test (Linux, ubuntu-latest, MultiThreaded)	24m 42s
	3h 42m 54s

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