support handleFlaky with tests #9311

Job	Run time
test-utils-js	29s
test-utils-py	28s
setup	4s
full-build-base	4h 8m 48s
base-build-windows	5m 3s
base-build-mac	4m 26s
bb-on-different-os (macos-latest)	34m 20s
bb-on-different-os (windows-latest)	35m 43s
debug	0s
installer-for-windows	1m 30s
installer-for-debian	1m 32s
installer-for-osx	58s
	5h 33m 21s

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