Bump ReactiveUI from 19.6.1 to 19.6.12

Bumps [ReactiveUI](https://github.com/reactiveui/reactiveui) from 19.6.1 to 19.6.12.
- [Release notes](https://github.com/reactiveui/reactiveui/releases)
- [Commits](reactiveui/ReactiveUI@19.6.1...19.6.12)

---
updated-dependencies:
- dependency-name: ReactiveUI
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

src/ImageSort.WPF/ImageSort.WPF.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="AdonisUI.ClassicTheme" Version="1.17.1" />
     <PackageReference Include="LazyCache" Version="2.4.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
-    <PackageReference Include="ReactiveUI" Version="19.6.1" />
+    <PackageReference Include="ReactiveUI" Version="19.6.12" />
     <PackageReference Include="ReactiveUI.Events.WPF" Version="15.1.1" />
     <PackageReference Include="ReactiveUI.WPF" Version="19.6.1" />
     <PackageReference Include="GitVersionTask" Version="5.5.1">

src/ImageSort/ImageSort.csproj

@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="DynamicData" Version="8.4.1" />
-    <PackageReference Include="ReactiveUI" Version="19.6.1" />
+    <PackageReference Include="ReactiveUI" Version="19.6.12" />
     <PackageReference Include="GitVersionTask" Version="5.5.1">
       <PrivateAssets>All</PrivateAssets>
     </PackageReference>

tests/ImageSort.UnitTests/ImageSort.UnitTests.csproj

@@ -15,7 +15,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="ReactiveUI" Version="19.6.1" />
+    <PackageReference Include="ReactiveUI" Version="19.6.12" />
     <PackageReference Include="ReactiveUI.Testing" Version="19.6.1" />
     <PackageReference Include="xunit" Version="2.7.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.7">