Bump Verify.Xunit from 20.7.0 to 20.8.0 (#146)

Bumps [Verify.Xunit](https://github.com/VerifyTests/Verify) from 20.7.0 to 20.8.0.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@20.7.0...20.8.0)

---
updated-dependencies:
- dependency-name: Verify.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>

Author: dependabot[bot]

test/NaturalStringExtensions.Tests/NaturalStringExtensions.Tests.csproj

@@ -24,7 +24,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
-    <PackageReference Include="Verify.Xunit" Version="20.7.0" />
+    <PackageReference Include="Verify.Xunit" Version="20.8.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>