cecf/opentelemetry-java-instrumentation: java agent代码 @ v250_kafka

Trask Stalnaker 9ce68fb937 Fix metric units (#6931)		2 lat temu
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src	9ce68fb937 Fix metric units (#6931)	2 lat temu
build.gradle.kts	3bbc41a6ce Enable oshi ProcessMetrics in javaagent (and refactor oshi instrumentation) (#5281)	3 lat temu