feat: update kafka version to 2.6.2 (#150)

Closes: #151

Signed-off-by: Dave <davilane@uk.ibm.com>

Author: its-dave

pom.xml

@@ -9,7 +9,7 @@
   <version>1.0.0</version>
 
   <properties>
-    <kafka.version>2.6.0</kafka.version>
+    <kafka.version>2.6.2</kafka.version>
     <vertx.version>4.0.0</vertx.version>
     <logback.version>1.2.3</logback.version>
     <jackson-databind.version>2.11.2</jackson-databind.version>