Added two new metrics for vcenter receiver #49333

Job	Run time
docker-build	6m 46s
collector-build	6m 36s
supervisor-test	53s
kubernetes-test-matrix (v1.30.0, receiver/k8sclusterreceiver)	6m 32s
kubernetes-test-matrix (v1.30.0, processor/k8sattributesprocessor)	6m 26s
kubernetes-test-matrix (v1.30.0, receiver/kubeletstatsreceiver)	4m 4s
kubernetes-test-matrix (v1.30.0, receiver/k8sobjectsreceiver)	3m 4s
kubernetes-test-matrix (v1.23.17, receiver/k8sclusterreceiver)	6m 45s
kubernetes-test-matrix (v1.23.17, processor/k8sattributesprocessor)	6m 41s
kubernetes-test-matrix (v1.23.17, receiver/kubeletstatsreceiver)	4m 5s
kubernetes-test-matrix (v1.23.17, receiver/k8sobjectsreceiver)	3m 6s
kubernetes-test	1s
	54m 59s

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