Bump AutoFixture.Xunit2 from 4.14.0 to 4.15.0

Bumps [AutoFixture.Xunit2](https://github.com/AutoFixture/AutoFixture) from 4.14.0 to 4.15.0.
- [Release notes](https://github.com/AutoFixture/AutoFixture/releases)
- [Commits](https://github.com/AutoFixture/AutoFixture/compare/v4.14.0...v4.15.0)

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

tests/Jellyfin.Api.Tests/Jellyfin.Api.Tests.csproj

@@ -15,7 +15,7 @@
   <ItemGroup>
     <PackageReference Include="AutoFixture" Version="4.15.0" />
     <PackageReference Include="AutoFixture.AutoMoq" Version="4.14.0" />
-    <PackageReference Include="AutoFixture.Xunit2" Version="4.14.0" />
+    <PackageReference Include="AutoFixture.Xunit2" Version="4.15.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="5.0.1" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="5.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />