diacritic character has been removed without replacing with undiacritic character

[trunkey2003]

As demonstrated in the documentation, I attempted to use the input ambição cerra o coração with Slugify. However, the output I received was a-ambio-cerra-o-corao instead of the expected a-ambicao-cerra-o-coracao.

Environment:

• .NET Version: 8.0.102
• Slugify.Core Version: 4.0.1

Test Code:

public static string GenerateSlug(string title)
{
    SlugHelper slug = new SlugHelper();
    return slug.GenerateSlug("a ambição cerra o coração");
}