Updating to v7 causes C# language mismatch

[Piedone]

This is very strange, but this is what happens:

With Scrutor v6.1.0 everything is fine. After updating to v7.0.0 we get a build error from this line from a project using it:

error CS8652: The feature 'params collections' is currently in Preview and unsupported. To use Preview features, use the 'preview' language version.

See the build here.

Note the following:

• The JObject.FromObject() call is just using System.Text.Json.Nodes.JObject. That method doesn't. I don't understand how the error related to its signature:

public static JsonObject? FromObject(object? obj, JsonSerializerOptions? options = null)

• This is part of a larger solution, this one (other projects in it use Scrutor too).
• All projects in the solution target .NET 8 and use C# 12.

I suspect this related to https://github.com/khellang/Scrutor/pull/265 and .NET 10 and doesn't happen if the project targets .NET 10 (what it soon will have).