Bump the dotnet group (#1262)

Bumps the dotnet group in /docs/fundamentals/snippets/testing/AspireApp1 with 2 updates: xunit and xunit.runner.visualstudio.


Updates `xunit` from 2.8.1 to 2.9.0

Updates `xunit.runner.visualstudio` from 2.8.1 to 2.8.2

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

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

docs/fundamentals/snippets/testing/AspireApp1/AspireApp1.Tests/AspireApp1.Tests.csproj

@@ -12,8 +12,8 @@
  <PackageReference Include="Aspire.Hosting.Testing" Version="8.0.2" />
  <PackageReference Include="coverlet.collector" Version="6.0.2" />
  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
- <PackageReference Include="xunit" Version="2.8.1" />
- <PackageReference Include="xunit.runner.visualstudio" Version="2.8.1" />
+ <PackageReference Include="xunit" Version="2.9.0" />
+ <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
  </ItemGroup>
 
  <ItemGroup>