3.38 / 3.10 (#2742)

This PR makes samples pass CI when 3.10 is released.

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).

platform_channels/lib/src/image_basic_message_channel.dart

@@ -15,8 +15,7 @@ class PlatformImageFetcher {
 
   /// Method responsible for providing the platform image.
   static Future<Uint8List> getImage() async {
-    final reply =
-        await _basicMessageChannel.send('getImage') as Uint8List?;
+    final reply = await _basicMessageChannel.send('getImage') as Uint8List?;
     if (reply == null) {
       throw PlatformException(
         code: 'Error',