chore(deps): update dependency mopups to 1.3.4 (#869)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Directory.Packages.props

@@ -28,7 +28,7 @@
     <PackageVersion Include="ReactiveUI.Testing" Version="$(ReactiveUIVersion)" />
     <PackageVersion Include="ReactiveUI.XamForms" Version="$(ReactiveUIVersion)" />
     <PackageVersion Include="ReactiveUI.WPF" Version="$(ReactiveUIVersion)" />
-    <PackageVersion Include="Mopups" Version="1.3.2" />
+    <PackageVersion Include="Mopups" Version="1.3.4" />
     <PackageVersion Include="Roslynator.Analyzers" Version="4.13.1" />
     <PackageVersion Include="stylecop.analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="System.Collections.Immutable" Version="9.0.6" />