Bump the xunit group with 2 updates (#1)

Bumps the xunit group with 2 updates: [xunit](https://github.com/xunit/xunit) and [xunit.runner.visualstudio](https://github.com/xunit/visualstudio.xunit).


Updates `xunit` from 2.6.6 to 2.8.0
- [Commits](xunit/xunit@2.6.6...2.8.0)

Updates `xunit.runner.visualstudio` from 2.5.6 to 2.8.0
- [Release notes](https://github.com/xunit/visualstudio.xunit/releases)
- [Commits](xunit/visualstudio.xunit@2.5.6...2.8.0)

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

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

Directory.Packages.props

@@ -24,8 +24,8 @@
     <PackageVersion Include="Serilog.Settings.Configuration" Version="8.0.0" />
     <PackageVersion Include="Serilog.Sinks.Console" Version="5.0.1" />
     <PackageVersion Include="Serilog.Sinks.Trace" Version="3.0.0" />
-    <PackageVersion Include="xunit" Version="2.6.6" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.6" PrivateAssets="all">
+    <PackageVersion Include="xunit" Version="2.8.0" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.0" PrivateAssets="all">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>
   </ItemGroup>