Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha from 1.32.0-alpha to 2.1.0-alpha in /other-examples/java

Bump io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha from 1.32.0-alpha to 2.1.0-alpha in /other-examples/java #698