fix(*): Change GraphiQL && Voyager CDNs option enabled to false

Author: aoudiamoncef

graphiql-spring-boot-autoconfigure/src/main/java/com/oembedler/moon/graphiql/boot/GraphiQLController.java

@@ -53,7 +53,7 @@ public class GraphiQLController {
     @Value("${graphiql.pageTitle:GraphiQL}")
     private String pageTitle;
 
-    @Value("${graphiql.cdn.enabled:false")
+    @Value("${graphiql.cdn.enabled:false}")
     private Boolean graphiqlCdnEnabled;
 
     @Value("${graphiql.cdn.version:0.13.0}")