ci: upgrade to vaadin 25.0.0

Author: javier-godoy

pom.xml

@@ -506,7 +506,7 @@
             <properties>
                 <maven.compiler.source>21</maven.compiler.source>
                 <maven.compiler.target>21</maven.compiler.target>
-                <vaadin.version>25.0.0-beta2</vaadin.version>
+                <vaadin.version>25.0.0</vaadin.version>
                 <jetty.version>11.0.26</jetty.version>
             </properties>
             <dependencies>