chore(deps): update dependency verify.xunit to v29 (#1970)

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

Author: renovate[bot]

Diff for: Refit.GeneratorTests/Refit.GeneratorTests.csproj

@@ -28,7 +28,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="9.0.3" />
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageReference Include="Verify.SourceGenerators" Version="2.5.0" />
-    <PackageReference Include="Verify.Xunit" Version="28.16.0" />
+    <PackageReference Include="Verify.Xunit" Version="29.1.0" />
     <PackageReference Include="System.Reactive" Version="6.0.1" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.2" />

Diff for: Refit.Tests/Refit.Tests.csproj

@@ -18,7 +18,7 @@
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' or '$(TargetFramework)' == 'net9.0'">
     <PackageReference Include="PublicApiGenerator" Version="11.4.5" />
-    <PackageReference Include="Verify.Xunit" Version="28.16.0" />
+    <PackageReference Include="Verify.Xunit" Version="29.1.0" />
   </ItemGroup>
   <ItemGroup Condition="$(TargetFramework.StartsWith('net9.0'))">
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="9.0.3" />