Bump ReactiveUI.Validation from 3.0.22 to 3.1.7 (#96)

Bumps [ReactiveUI.Validation](https://github.com/reactiveui/reactiveui.validation) from 3.0.22 to 3.1.7.
- [Release notes](https://github.com/reactiveui/reactiveui.validation/releases)
- [Commits](reactiveui/ReactiveUI.Validation@3.0.22...3.1.7)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Citrus.Avalonia.Sandbox/Citrus.Avalonia.Sandbox.csproj

@@ -12,7 +12,7 @@
     <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.18" />
     <PackageReference Include="Avalonia.LinuxFramebuffer" Version="0.10.18" />
     <PackageReference Include="Avalonia.Desktop" Version="0.10.18" />
-    <PackageReference Include="ReactiveUI.Validation" Version="3.0.22" />
+    <PackageReference Include="ReactiveUI.Validation" Version="3.1.7" />
     <PackageReference Include="ReactiveUI.Fody" Version="18.4.1" />
   </ItemGroup>