Friendly overloads are missing SupportedOSPlatform

[AArnott]

Actual behavior

    internal static unsafe int GetStagedPackagePathByFullName2(string packageFullName, PackagePathType packagePathType, ref uint pathLength, PWSTR path)
    {
        fixed (uint *pathLengthLocal = &pathLength)
        {
            fixed (char *packageFullNameLocal = packageFullName)
            {
                int __result = PInvoke.GetStagedPackagePathByFullName2(packageFullNameLocal, packagePathType, pathLengthLocal, path);
                return __result;
            }
        }
    }

    [DllImport("api-ms-win-appmodel-runtime-l1-1-3", ExactSpelling = true)]
    [DefaultDllImportSearchPaths(DllImportSearchPath.System32)]
    [SupportedOSPlatform("windows10.0.10240")]
    internal static extern unsafe int GetStagedPackagePathByFullName2(PCWSTR packageFullName, PackagePathType packagePathType, uint *pathLength, PWSTR path);

Expected behavior

The SupportedOSPlatform attribute should appear on the friendly overload as well or the analyzer can't do its work.

Repro steps

1. NativeMethods.txt content:

GetStagedPackagePathByFullName2

Context

• CsWin32 version: 0.1.435-beta
• Target Framework: net5.0-windows7.0;net472;netstandard2.0
• LangVersion (if explicitly set by project): 9