Bump xunit from 2.6.6 to 2.7.0 in /Cake.PathTildeHelper.Tests (#111)

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
...

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

Author: dependabot[bot]

Cake.PathTildeHelper.Tests/Cake.PathTildeHelper.Tests.csproj

@@ -13,7 +13,7 @@
 
     <PackageReference Include="Moq" Version="4.18.4" />
 
-    <PackageReference Include="xunit" Version="2.6.6" />
+    <PackageReference Include="xunit" Version="2.7.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.1" />
   </ItemGroup>