build: upgrade enhanced-tabs to 1.2.0

Author: javier-godoy

pom.xml

@@ -93,7 +93,7 @@
     <dependency>
         <groupId>com.flowingcode.vaadin.addons</groupId>
         <artifactId>enhanced-tabs-addon</artifactId>
-        <version>1.2.0-SNAPSHOT</version>
+        <version>1.2.0</version>
     </dependency>
 
     <dependency>