Pipe: Added metrics for receiver request size #29889

Job	Run time
unit-test (17, ubuntu-latest, datanode)	23m 11s
unit-test (17, windows-latest, others)	29m 7s
unit-test (17, windows-latest, datanode)	33m 34s
unit-test (17, ubuntu-latest, others)	19m 57s
	1h 45m 49s

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