Update NuGet.config

NuGet.config

@@ -3,7 +3,6 @@
   <packageSources>
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
-    <add key="AvaloniaCI" value="https://nuget-feed-nightly.avaloniaui.net/api/download/symbols" />
-    <add key="CI Feed" value="https://pkgs.dev.azure.com/AvaloniaUI/AvaloniaUI/_packaging/avalonia-all/nuget/v3/index.json" />
+    <add key="AvaloniaAll" value="https://nuget-feed-all.avaloniaui.net/v3/index.json" protocolVersion="3" />
   </packageSources>
 </configuration>