Bump Verify.Xunit in the xunit group across 1 directory

Bumps the xunit group with 1 update in the / directory: [Verify.Xunit](https://github.com/VerifyTests/Verify).


Updates `Verify.Xunit` from 28.7.1 to 28.13.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@28.7.1...28.13.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Directory.Packages.props

@@ -17,7 +17,7 @@
     <PackageVersion Include="Semver" Version="3.0.0" />
     <PackageVersion Include="System.Net.Http.Json" Version="9.0.0" />
     <PackageVersion Include="System.Text.Json" Version="9.0.0" />
-    <PackageVersion Include="Verify.Xunit" Version="28.7.1" />
+    <PackageVersion Include="Verify.Xunit" Version="28.13.0" />
     <PackageVersion Include="xunit" Version="2.9.2" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0" />
   </ItemGroup>