(docs) Add JavaDocs for org.apache.kafka.common.security.oauthbearer.secured
Reviewers:  Luke Chen Jun Rao
@@ -1308,6 +1308,7 @@ project(':clients') {
include "**/org/apache/kafka/common/security/scram/*"
include "**/org/apache/kafka/common/security/token/delegation/*"
include "**/org/apache/kafka/common/security/oauthbearer/*"
+ include "**/org/apache/kafka/common/security/oauthbearer/secured/*"
include "**/org/apache/kafka/server/authorizer/*"
include "**/org/apache/kafka/server/policy/*"
include "**/org/apache/kafka/server/quota/*"
