Bump xunit from 2.6.6 to 2.7.0 (#1386)

Bumps [xunit](https://github.com/xunit/xunit) from 2.6.6 to 2.7.0.
- [Commits](xunit/xunit@2.6.6...2.7.0)

---
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: Simon Cropp <simon.cropp@gmail.com>

src/Humanizer.Tests/Humanizer.Tests.csproj

@@ -6,20 +6,18 @@
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.0" PrivateAssets="all" />
     <PackageReference Include="PublicApiGenerator" Version="11.1.0" />
-    <PackageReference Include="xunit" Version="2.6.6" />
+    <PackageReference Include="xunit" Version="2.7.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.7" PrivateAssets="all" />
     <PackageReference Include="Verify.Xunit" Version="23.2.0" />
     <PackageReference Include="Verify.DiffPlex" Version="2.3.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <ProjectReference Include="..\Humanizer\Humanizer.csproj" />
     <Reference Include="System.ComponentModel.DataAnnotations"  Condition="'$(TargetFramework)' == 'net48' "/>
-  </ItemGroup>
-  <ItemGroup>
+
     <Compile Include="..\Humanizer.Tests.Shared\**\*.cs">
       <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
     </Compile>
-  </ItemGroup>
-  <ItemGroup>
+
     <Content Include="xunit.runner.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>