Fix S2743 FP: static abstract interface members in generic interfaces

[gao-artur]

Description

Consider this interface definition

public interface IExporter<in TParameters>
{
    Task ExecuteExport(TParameters queryParameters, CancellationToken token);
    static abstract string ExportFilePrefix { get; }
}

This appears to be a false positive. ExportFilePrefix is not a static field or static state stored on the generic interface. It is a static abstract interface contract that each implementing type must provide. No per-constructed-generic static storage exists on the interface itself.

Reproducer

public interface IExporter<in TParameters>
{
    Task ExecuteExport(TParameters queryParameters, CancellationToken token);
    static abstract string ExportFilePrefix { get; }
}

Product and Version

SonarQube Server v2026.2.1 (121354)