Bump Verify.Xunit from 26.2.0 to 26.3.1

Bumps [Verify.Xunit](https://github.com/VerifyTests/Verify) from 26.2.0 to 26.3.1.
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@26.2.0...26.3.1)

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

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

Author: dependabot[bot]

Tests/Tests.csproj

@@ -8,7 +8,7 @@
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="FodyHelpers" Version="6.8.1" />
     <PackageReference Include="Xunit" Version="2.9.0" />
-    <PackageReference Include="Verify.Xunit" Version="26.2.0" />
+    <PackageReference Include="Verify.Xunit" Version="26.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" PrivateAssets="all" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <ProjectReference Include="..\Publicize.Fody\Publicize.Fody.csproj" />