build(deps): Bump xunit from 2.6.4 to 2.6.5

Bumps [xunit](https://github.com/xunit/xunit) from 2.6.4 to 2.6.5.
- [Commits](xunit/xunit@2.6.4...2.6.5)

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

Signed-off-by: dependabot[bot] <support@github.com>

Directory.Packages.props

@@ -25,7 +25,7 @@
     <PackageVersion Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="Octokit" Version="9.1.0" />
-    <PackageVersion Include="xunit" Version="2.6.4" />
+    <PackageVersion Include="xunit" Version="2.6.5" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.6" />
   </ItemGroup>
 </Project>