[FLINK-25504][Kafka] Upgrade Confluent to v6.2.2 and Kafka-Client to 2.8.1
diff --git a/flink-formats-kafka/flink-avro-confluent-registry/pom.xml b/flink-formats-kafka/flink-avro-confluent-registry/pom.xml
index 6dda873..4b79128 100644
--- a/flink-formats-kafka/flink-avro-confluent-registry/pom.xml
+++ b/flink-formats-kafka/flink-avro-confluent-registry/pom.xml
@@ -32,8 +32,8 @@
 	<name>Flink : Formats : Avro confluent registry</name>
 
 	<properties>
-		<kafka.version>2.4.1</kafka.version>
-		<confluent.version>5.5.2</confluent.version>
+		<kafka.version>2.8.1</kafka.version>
+		<confluent.version>6.2.2</confluent.version>
 	</properties>
 
 	<repositories>
diff --git a/flink-formats-kafka/flink-sql-avro-confluent-registry/src/main/resources/META-INF/NOTICE b/flink-formats-kafka/flink-sql-avro-confluent-registry/src/main/resources/META-INF/NOTICE
index ddbec15..bfddc9b 100644
--- a/flink-formats-kafka/flink-sql-avro-confluent-registry/src/main/resources/META-INF/NOTICE
+++ b/flink-formats-kafka/flink-sql-avro-confluent-registry/src/main/resources/META-INF/NOTICE
@@ -11,10 +11,10 @@
 - com.fasterxml.jackson.core:jackson-databind:2.13.0
 - com.fasterxml.jackson.core:jackson-annotations:2.13.0
 - org.apache.commons:commons-compress:1.21
-- io.confluent:kafka-schema-registry-client:5.5.2
-- org.apache.kafka:kafka-clients:5.5.2-ccs
-- io.confluent:common-config:5.5.2
-- io.confluent:common-utils:5.5.2
+- io.confluent:kafka-schema-registry-client:6.2.2
+- org.apache.kafka:kafka-clients:6.2.2-ccs
+- io.confluent:common-config:6.2.2
+- io.confluent:common-utils:6.2.2
 - org.glassfish.jersey.core:jersey-common:2.30
 
 The binary distribution of this product bundles these dependencies under the Eclipse Public License - v 2.0 (https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt)