chore(deps): update dependency reactiveui.wpf to 20.1.63

Author: renovate[bot]

src/ReactiveMvvm.Wpf/ReactiveMvvm.Wpf.csproj

@@ -6,7 +6,7 @@
     <UseWpf>true</UseWpf>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="ReactiveUI.WPF" Version="20.1.1" />
+    <PackageReference Include="ReactiveUI.WPF" Version="20.1.63" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ReactiveMvvm\ReactiveMvvm.csproj" />