CS1685 warning when building projects target to net10

[arenekosreal]

Reproduce steps:

Run this C# code with command like dotnet run /path/to/code.cs:

#:package PathLib@0.9.8

"Hello World".Print();


public static class StringExtensions
{
    public static void Print(this string str) => Console.WriteLine(str);
}

Then you will find compiler gives this warning:
CSC : warning CS1685: The predefined type 'ExtensionAttribute' is defined in multiple assemblies in the global alias; using definition from 'PathLib, Version=0.9.8.0, Culture=neutral, PublicKeyToken=null'

It seems that https://github.com/nemec/pathlib/blob/master/PathLib/Utils/LinqBridge.cs created this attribute, because you were going to use features in the future on old target frameworks. I think you may use https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/preprocessor-directives to use built-in features if supported?

P.S.: To reproduce this problem, you can also create a new project, add reference to PathLib and run the project like the old days. The result is same.