Fix the EJB dependency version in the light-client

Author: dmitry-timofeev

exonum-light-client/pom.xml

@@ -42,7 +42,7 @@
   </developers>
 
   <properties>
-    <ejb.version>0.4-SNAPSHOT</ejb.version>
+    <ejb.version>0.4.0</ejb.version>
     <java.compiler.source>8</java.compiler.source>
     <java.compiler.target>8</java.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>