[receiver/vcenterreceiver] Optimize vCenter VM network calls (#32201) #590

Job	Run time
windows-unittest-matrix (receiver-0)	16m 27s
windows-unittest-matrix (receiver-1)	18m 38s
windows-unittest-matrix (processor)	11m 46s
windows-unittest-matrix (exporter)	26m 54s
windows-unittest-matrix (extension)	13m 59s
windows-unittest-matrix (internal)	18m 38s
windows-unittest-matrix (pkg)	12m 46s
windows-unittest-matrix (cmd)	22m 58s
windows-unittest-matrix (other)	18m 54s
windows-unittest	3s
	2h 41m 3s

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