Fix call to ArrayNode#builder

Author: adwsingh

codegen/core/src/main/java/software/amazon/smithy/java/codegen/integrations/core/NodeWriter.java

@@ -127,7 +127,7 @@ public Void objectNode(ObjectNode objectNode) {
 
         @Override
         public Void arrayNode(ArrayNode arrayNode) {
-            writer.write("$T.builder", ArrayNode.class);
+            writer.write("$T.builder()", ArrayNode.class);
             writer.indent();
             for (var element : arrayNode.getElements()) {
                 writer.write(".withValue($C)", (Runnable) () -> element.accept(this));