deps: update opentelemetry-java monorepo to v1.38.0 #6709

Job	Run time
build (11)	12m 48s
build (17)	12m 29s
build(21) except self-service clients	11m 27s
build(8) except for gapic-generator-java	4m 10s
build(8) for gapic-generator-java	9m 17s
lint	28s
showcase (11)	3m 48s
showcase (17)	4m 0s
compatibility	1m 30s
showcase-native	8m 21s
dependency_analyzer_unit_test	13s
gapic-generator-java-bom	1m 48s
showcase-clirr	3m 21s
unmanaged_dependency_check	4m 58s
	1h 18m 38s

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