added confluent repository

Author: jruaux

pom.xml

@@ -43,6 +43,10 @@
         <url>https://github.com/RedisLabs-Field-Engineering/redis-enterprise-kafka/issues</url>
     </issueManagement>
     <repositories>
+        <repository>
+            <id>confluent</id>
+            <url>http://packages.confluent.io/maven/</url>
+        </repository>
         <repository>
             <id>github</id>
             <name>GitHub Packages</name>