build(deps): bump xunit from 2.4.2 to 2.6.6 in /TransformerBeeClient (#27)

Bumps [xunit](https://github.com/xunit/xunit) from 2.4.2 to 2.6.6.
- [Commits](xunit/xunit@2.4.2...2.6.6)

---
updated-dependencies:
- dependency-name: xunit
  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>
Co-authored-by: konstantin <konstantin.klein@hochfrequenz.de>

Author: dependabot[bot]

TransformerBeeClient/ExampleAspNetCoreApplication.Test/ExampleAspNetCoreApplication.Test.csproj

@@ -13,7 +13,7 @@
         <PackageReference Include="FluentAssertions" Version="6.12.0" />
         <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.1" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0"/>
-        <PackageReference Include="xunit" Version="2.4.2"/>
+        <PackageReference Include="xunit" Version="2.6.6"/>
         <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>