Bump xunit from 2.8.1 to 2.9.0 (#293)

Bumps [xunit](https://github.com/xunit/xunit) from 2.8.1 to 2.9.0.
- [Commits](xunit/xunit@2.8.1...2.9.0)

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

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

Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Microsoft.VisualStudio.Setup.Configuration.Interop" Version="3.10.2154" />
     <PackageVersion Include="Shouldly" Version="4.2.1" />
     <PackageVersion Include="System.IO.Compression" Version="4.3.0" />
-    <PackageVersion Include="xunit" Version="2.8.1" />
+    <PackageVersion Include="xunit" Version="2.9.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>
   <ItemGroup>