Added two new metrics for vcenter receiver #49338

Job	Run time
collector-build	6m 38s
docker-build	6m 35s
kubernetes-test-matrix (v1.30.0, receiver/k8sclusterreceiver)	6m 50s
kubernetes-test-matrix (v1.30.0, processor/k8sattributesprocessor)	6m 35s
kubernetes-test-matrix (v1.30.0, receiver/kubeletstatsreceiver)	3m 59s
kubernetes-test-matrix (v1.30.0, receiver/k8sobjectsreceiver)	3m 2s
kubernetes-test-matrix (v1.23.17, receiver/k8sclusterreceiver)	6m 34s
kubernetes-test-matrix (v1.23.17, processor/k8sattributesprocessor)	6m 39s
kubernetes-test-matrix (v1.23.17, receiver/kubeletstatsreceiver)	4m 20s
kubernetes-test-matrix (v1.23.17, receiver/k8sobjectsreceiver)	3m 17s
supervisor-test	54s
kubernetes-test	1s
	55m 24s

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