Add step for prime manifests #5174

Job	Run time
e2e-fleet-test-k3s-new-default	3m 46s
e2e-fleet-test-k3s-new-default	6m 6s
e2e-fleet-test-k3s-new-sharding	3m 46s
e2e-fleet-test-k3s-new-sharding	3m 46s
e2e-fleet-test-k3s-new-infra-setup	2m 17s
e2e-fleet-test-k3s-new-infra-setup	2m 17s
e2e-fleet-test-k3s-old-default	3m 43s
e2e-fleet-test-k3s-old-default	3m 43s
e2e-fleet-test-k3s-old-sharding	2m 4s
e2e-fleet-test-k3s-old-sharding	2m 4s
e2e-fleet-test-k3s-old-infra-setup	3m 15s
e2e-fleet-test-k3s-old-infra-setup	3m 15s
	40m 2s

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