fix app builder owner name field assignment

Author: nobodyiam

apollo-common/src/main/java/com/ctrip/framework/apollo/common/entity/App.java

@@ -115,7 +115,7 @@ public Builder orgName(String orgName) {
     }
 
     public Builder ownerName(String ownerName) {
-      app.setOrgName(ownerName);
+      app.setOwnerName(ownerName);
       return this;
     }