[Test] refine test socpe definition #1244

Job	Run time
build-docker-image-latest-pvc	19s
build-docker-image-latest-bmg	10s
run-unit-tests-pvc	3m 23s
clean-repo-pvc	-1s
run-unit-tests-bmg	3m 59s
clean-repo-bmg	0s
	7m 50s

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