fix pebkc compilation error

Author: SylvainJuge

instrumentation/kafka/kafka-clients/kafka-clients-0.11/testing/src/main/java/io/opentelemetry/instrumentation/kafka/internal/KafkaClientBaseTest.java

@@ -8,6 +8,7 @@
 import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.equalTo;
 import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.satisfies;
 import static io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes.MESSAGING_BATCH_MESSAGE_COUNT;
+import static io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes.MESSAGING_CLIENT_ID;
 import static io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes.MESSAGING_DESTINATION_NAME;
 import static io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes.MESSAGING_DESTINATION_PARTITION_ID;
 import static io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes.MESSAGING_KAFKA_CONSUMER_GROUP;