Fix Avalonia updater

Ryujinx.Ava/Modules/Updater/Updater.cs

@@ -98,7 +98,7 @@ namespace Ryujinx.Modules
                         string assetState = (string)asset["state"];
                         string downloadURL = (string)asset["browser_download_url"];
 
-                        if (assetName.StartsWith("ava-ryujinx") && assetName.EndsWith(_platformExt))
+                        if (assetName.StartsWith("test-ava-ryujinx") && assetName.EndsWith(_platformExt))
                         {
                             _buildUrl = downloadURL;