Change artifact id that is not correct

Author: vietj

pom.xml

@@ -26,7 +26,7 @@
   </parent>
 
   <groupId>io.reactiverse</groupId>
-  <artifactId>childprocess-vertx-ext</artifactId>
+  <artifactId>reactiverse-child-process</artifactId>
   <version>2.0.2-SNAPSHOT</version>
 
   <name>Child Process extension for Vert.x</name>