Attribute property generate doesn't work correctly.

[kami-poi]

Hello, I found that when I try to set properties for an attribute, the generator could not generate correct code. For example, when I apply an attribute like this:

[Authorize(Roles = "Admin")]
public async Task TestMethodAsync() {...}

The generator generates this code:

[Microsoft.AspNetCore.Authorization.Authorize()]
[HttpPost("TestMethod")]
public async Task<IActionResult> TestMethod() {...}

I have fixed this and will create a new pull request later. I'm not familiar with source generator, so maybe my code is not good enough. It just works to resolve this problem, and provides an idea to resolve this problem :)