Cherry pick PR #1036: Increase sleep to address Watchdog test flakiness. #502

Job	Run time
raspi-2-skia / initialize	1m 8s
raspi-2 / initialize	32s
raspi-2 / docker-build-image	39s
raspi-2 / docker-unittest-image	0s
raspi-2-skia / docker-build-image	43s
raspi-2-skia / docker-unittest-image	0s
raspi-2 / raspi_devel	8m 40s
raspi-2 / raspi_debug	11m 17s
raspi-2 / raspi_qa	8m 50s
raspi-2 / raspi_gold	7m 32s
raspi-2 / sbversion-13_devel	9m 18s
raspi-2 / sbversion-13_debug	10m 12s
raspi-2 / sbversion-13_qa	11m 7s
raspi-2 / sbversion-13_gold	7m 18s
raspi-2 / sbversion-14_devel	8m 25s
raspi-2 / sbversion-14_debug	9m 28s
raspi-2 / sbversion-14_qa	8m 37s
raspi-2 / sbversion-14_gold	7m 20s
raspi-2 / sbversion-15_devel	8m 54s
raspi-2 / sbversion-15_debug	9m 27s
raspi-2 / sbversion-15_qa	8m 59s
raspi-2 / sbversion-15_gold	7m 30s
raspi-2-skia / raspi-2-skia_devel	8m 33s
raspi-2-skia / raspi-2-skia_debug	9m 44s
raspi-2-skia / raspi-2-skia_qa	9m 7s
raspi-2-skia / raspi-2-skia_gold	8m 25s
raspi-2 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2 / on-host-unit-test-report	0s
raspi-2-skia / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2-skia / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2-skia / on-host-unit-test-report	0s
	3h 1m 45s

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