csharp wrong highlighting using attributes with string params

[dacanizares]

As you can see the string sent in the Router attribute is wrongly encoded: http://rouge.jneen.net/pastes/xlA9

Example of code to reproduce the issue:

[Route("api/[controller]")]
[ApiController()]
public class UsersController : ControllerBase
{
    protected readonly IUsersRepository _repository;
    
}

You can see a similar code on the official docs: https://docs.microsoft.com/en-us/aspnet/core/tutorials/first-web-api?view=aspnetcore-2.2&tabs=visual-studio#add-a-controller

[dacanizares]

As you can see here, string arguments are not being highlighted when used inside an attribute: http://rouge.jneen.net/pastes/pD9W

[pyrmont]

This was being caused by this rule. I've submitted a fix that removes it.