fix(DBCluster): Handle delete handler stabilization when dbcluster li…

…stempty

aws-rds-dbcluster/src/main/java/software/amazon/rds/dbcluster/BaseHandlerStd.java

@@ -401,7 +401,7 @@ protected boolean isDBClusterDeleted(
     ) {
         try {
             fetchDBCluster(proxyClient, model);
-        } catch (DbClusterNotFoundException e) {
+        } catch (DbClusterNotFoundException | IndexOutOfBoundsException e) {
             return true;
         }
         return false;