Add WAITING_FOR_RESOURCE to job scopes (#1239)

Author: fasilmarshooq

gitlab4j-models/src/main/java/org/gitlab4j/models/Constants.java

@@ -443,7 +443,8 @@ public enum JobScope {
         SUCCESS,
         CANCELED,
         SKIPPED,
-        MANUAL;
+        MANUAL,
+        WAITING_FOR_RESOURCE;
 
         private static JacksonJsonEnumHelper<JobScope> enumHelper = new JacksonJsonEnumHelper<>(JobScope.class);