build(deps): bump ReactiveUI.Uwp from 18.2.5 to 18.3.1 in /samples#479

ChrisPulman merged 1 commit intomainreactiveui/ReactiveUI.Validation:mainfrom

dependabot/nuget/samples/ReactiveUI.Uwp-18.3.1reactiveui/ReactiveUI.Validation:dependabot/nuget/samples/ReactiveUI.Uwp-18.3.1Copy head branch name to clipboard