build(deps): bump xunit.runner.visualstudio from 2.5.1 to 2.5.3 in /src

Bumps [xunit.runner.visualstudio](https://github.com/xunit/visualstudio.xunit) from 2.5.1 to 2.5.3.
- [Release notes](https://github.com/xunit/visualstudio.xunit/releases)
- [Commits](xunit/visualstudio.xunit@2.5.1...2.5.3)

---
updated-dependencies:
- dependency-name: xunit.runner.visualstudio
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

src/ReactiveUI.Validation.Tests/ReactiveUI.Validation.Tests.csproj

@@ -16,7 +16,7 @@
     <PackageReference Include="Microsoft.Reactive.Testing" Version="6.0.0" />
     <PackageReference Include="PublicApiGenerator" Version="11.0.0" />
     <PackageReference Include="xunit.runner.console" Version="2.5.1" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" />
     <PackageReference Include="coverlet.msbuild" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>