Bump Verify.Xunit from 28.11.0 to 28.12.0

Bumps [Verify.Xunit](https://github.com/VerifyTests/Verify) from 28.11.0 to 28.12.0.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@28.11.0...28.12.0)

---
updated-dependencies:
- dependency-name: Verify.Xunit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Directory.Packages.props

@@ -10,7 +10,7 @@
     <!-- Test dependencies -->
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="PublicApiGenerator" Version="11.4.2" />
-    <PackageVersion Include="Verify.Xunit" Version="28.11.0" />
+    <PackageVersion Include="Verify.Xunit" Version="28.12.0" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="Xunit.SkippableFact" Version="1.5.23" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.2" />