feat: Refine tracing telemetry for client-side attributes #13242

Job	Run time
build(8) for gapic-generator-java	10m 52s
build(8) except for gapic-generator-java	4m 23s
build(21) except self-service clients	13m 23s
lint	1m 10s
build (11)	14m 48s
build(25) except self-service clients	12m 51s
unmanaged_dependency_check	6m 34s
compatibility	1m 28s
build (17)	13m 49s
build(8) for showcase	1m 50s
dependency_analyzer_unit_test	19s
showcase (17)	6m 38s
gapic-generator-java-bom	2m 1s
showcase (11)	6m 36s
showcase-clirr	3m 23s
showcase (21)	6m 26s
showcase (25)	6m 22s
	1h 52m 53s

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