build: update popup dependency version

Author: paodb

enhanced-grid-flow/pom.xml

@@ -104,7 +104,7 @@
         <dependency>
 		   <groupId>com.vaadin.componentfactory</groupId>
 		   <artifactId>popup</artifactId>
-		   <version>2.2.3</version>
+		   <version>2.2.4</version>
 		</dependency>
 
     </dependencies>