chore: upgrade to Java SDK v5 (#7)

Author: fahad19

pom.xml

@@ -32,7 +32,7 @@
         <dependency>
             <groupId>com.featurevisor</groupId>
             <artifactId>featurevisor-java</artifactId>
-            <version>4.0.0</version>
+            <version>5.0.0</version>
         </dependency>
     </dependencies>