Bump Verify.XunitV3 from 28.13.0 to 28.15.0 in the xunit group

Bumps the xunit group with 1 update: [Verify.XunitV3](https://github.com/VerifyTests/Verify).


Updates `Verify.XunitV3` from 28.13.0 to 28.15.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](https://github.com/VerifyTests/Verify/commits)

---
updated-dependencies:
- dependency-name: Verify.XunitV3
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: xunit
...

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

Author: dependabot[bot]

tests/TodoApp.Tests/TodoApp.Tests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.6.23" />
     <PackageReference Include="Microsoft.Playwright" Version="1.50.0" />
-    <PackageReference Include="Verify.XunitV3" Version="28.13.0" />
+    <PackageReference Include="Verify.XunitV3" Version="28.15.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" />
     <PackageReference Include="xunit.v3" Version="2.0.0" />
   </ItemGroup>