[Windows_android channels_integration_test] Column -> ListView (#134836)

This should fix flutter/flutter#134636. 

The column can get really tall, especially when there's line wrapping. This is the layout on a tablet, so on a motor g4 this column is likely going to overflow.

```
     RenderParagraph#66251 relayoutBoundary=up3
� creator: RichText � Text-[<'status'>] � Column �
�   FutureBuilder<TestStepResult> � Padding �
�   KeyedSubtree-[GlobalKey#0f29e] � _BodyBuilder � MediaQuery �
�   LayoutId-[<_ScaffoldSlot.body>] � CustomMultiChildLayout �
�   _ActionsScope � Actions � �
|  parentData: offset=Offset(0.0, 600.0); flex=null; fit=null
```

![flutter_01](https://github.com/flutter/flutter/assets/31859944/5e700d21-3c5e-4990-bfb5-153f44f1c517)

dev/integration_tests/channels/lib/src/test_step.dart

@@ -69,8 +69,7 @@ class TestStepResult {
   );
 
   Widget asWidget(BuildContext context) {
-    return Column(
-      crossAxisAlignment: CrossAxisAlignment.start,
+    return ListView(
       children: <Widget>[
         Text('Step: $name', style: bold),
         Text(description),