Bump Verify.Xunit from 25.0.4 to 25.1.1 in /src

Bumps [Verify.Xunit](https://github.com/VerifyTests/Verify) from 25.0.4 to 25.1.1.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@25.0.4...25.1.1)

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

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

src/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageVersion Include="NodaTime" Version="3.1.11" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.128" />
-    <PackageVersion Include="Verify.Xunit" Version="25.0.4" />
+    <PackageVersion Include="Verify.Xunit" Version="25.1.1" />
     <PackageVersion Include="Xunit" Version="2.8.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1" />
   </ItemGroup>