Bump Xunit from 2.6.6 to 2.7.0 (#535)

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

Author: dependabot[bot]

Tests/Tests.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="FodyHelpers" Version="6.8.0" />
-    <PackageReference Include="Xunit" Version="2.6.6" />
+    <PackageReference Include="Xunit" Version="2.7.0" />
     <PackageReference Include="Verify.Xunit" Version="23.2.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.7" PrivateAssets="all" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />