misc: Reformat Ryujinx.Audio with dotnet-format (#3485)

This is the first commit of a series of reformat around the codebase as
discussed internally some weeks ago.

This project being one that isn't touched that much, it shouldn't cause
conflict with any opened PRs.

Ryujinx.Audio/Renderer/Dsp/Command/ClearMixBufferCommand.cs

@@ -21,4 +21,4 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             context.ClearBuffers();
         }
     }
-}
+}