Kokilavani Kathiresan

### Describe the bug In Opentracing, In consumer interceptor, consumer span context is injected into the header. https://github.com/opentracing-contrib/java-kafka-client/blob/master/opentracing-kafka-client/src/main/java/io/opentracing/contrib/kafka/TracingKafkaUtils.java#L138 But with Opentelemetry, it is not injected. https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation/kafka/kafka-clients/kafka-clients-2.6/library/src/main/java/io/opentelemetry/instrumentation/kafkaclients/v2_6/KafkaTelemetry.java#L292 ### Steps to reproduce...