chore(deps): update dependency verify.xunit to v31 (#288)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/FhirPseudonymizer.Tests/FhirPseudonymizer.Tests.csproj

@@ -9,7 +9,7 @@
     <PackageReference Include="AwesomeAssertions" Version="8.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.9" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="Verify.Xunit" Version="30.20.0" />
+    <PackageReference Include="Verify.Xunit" Version="31.4.3" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>