feat(kuma-cp): allow `sectionName` and `labels` in `targetRef` #8541

Job	Run time
check	8m 59s
test / gen_e2e_matrix	1s
test / test_unit	11m 9s
test / test_e2e	0s
test / test_e2e_env (multizone, v1.31.1-k3s1, amd64, 1, flannel) / e2e (0)	25m 0s
test / test_e2e_env (kubernetes, v1.31.1-k3s1, amd64, 1, flannel) / e2e (0)	26m 14s
test / test_e2e_env (universal, kind, amd64, 1, flannel) / e2e (0)	17m 23s
build_publish	0s
provenance	0s
distributions	5s
	1h 28m 51s

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