Fix javadoc error

sdk/maps/azure-maps-timezone/src/main/java/com/azure/maps/timezone/TimeZoneClientBuilder.java

@@ -54,7 +54,7 @@
  * AzureKeyCredential keyCredential = new AzureKeyCredential(System.getenv("SUBSCRIPTION_KEY"));
  *
  * // Creates a client
- * TimeZoneClient client = new TimeZoneClientBuilder()
+ * TimeZoneClient client = new TimeZoneClientBuilder() 
  *     .credential(keyCredential)
  *     .timezoneClientId(System.getenv("MAPS_CLIENT_ID"))
  *     .buildClient();