Simplify target customisations for namespace labels and annotations #4048

Job	Run time
e2e-fleet-test (v1.30.2-k3s2, default)	13m 27s
e2e-fleet-test (v1.30.2-k3s2, default)	12m 58s
e2e-fleet-test (v1.30.2-k3s2, default)	9m 2s
e2e-fleet-test (v1.30.2-k3s2, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	5m 41s
e2e-fleet-test (v1.30.2-k3s2, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	5m 41s
e2e-fleet-test (v1.30.2-k3s2, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	5m 41s
e2e-fleet-test (v1.30.2-k3s2, infra-setup)	8m 43s
e2e-fleet-test (v1.30.2-k3s2, infra-setup)	8m 43s
e2e-fleet-test (v1.30.2-k3s2, infra-setup)	8m 43s
e2e-fleet-test (v1.24.17-k3s1, default)	9m 31s
e2e-fleet-test (v1.24.17-k3s1, default)	9m 31s
e2e-fleet-test (v1.24.17-k3s1, default)	9m 31s
e2e-fleet-test (v1.24.17-k3s1, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	14m 28s
e2e-fleet-test (v1.24.17-k3s1, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	14m 28s
e2e-fleet-test (v1.24.17-k3s1, sharding, [{"id":"shard0"},{"id":"shard1"},{"id":"shard2"}])	14m 28s
e2e-fleet-test (v1.24.17-k3s1, infra-setup)	9m 14s
e2e-fleet-test (v1.24.17-k3s1, infra-setup)	9m 14s
e2e-fleet-test (v1.24.17-k3s1, infra-setup)	9m 14s
	2h 58m 18s

Provide feedback