excluded Prism from sorbet todo (#160)

Author: nijeesh-stream

sorbet/rbi/todo.rbi

@@ -8,3 +8,4 @@ module T::CompatibilityPatches::RSpecCompatibility::MethodDoubleExtensions; end
 module T::CompatibilityPatches::RSpecCompatibility::RecorderExtensions; end
 module T::Private::Methods::MethodHooks; end
 module T::Private::Methods::SingletonMethodHooks; end
+class Prism::LexCompat::Result; end