text: Title: strawberry.ext.mypy_plugin PydanticModelField.to_argument error
  Body: I think I'm having some issues with strawberry.ext.mypy_plugin when using a pydantic model to make my types
  When I enable I get this error (image). If I disable it runs.
  
  ## Describe the Bug
  
  When I enable I get this error. If I disable it runs.
  ![image](https://github.com/strawberry-graphql/strawberry/assets/63082743/0efdf05e-9316-438b-a8e8-64318cfcf500)
  
  
  ## System Information
  
   - Operating system: Linux
  Using version ^0.224.1 for strawberry-graphql
  Using version ^2.6.4 for pydantic
  Using version ^0.0.16 for sqlmodel
  Using version ^1.9.0 for mypy
  
  ## Additional Context
  
  this is the file showed in error:
  ```py
  from strawberry import auto, type
  from strawberry.experimental.pydantic import type as pydantic_type
  
  from database.models.brazil import Address, City, State
  
  
  @pydantic_type(name='State', model=State)
  class StateType:
      name: auto
      acronym: auto
  
  
  @pydantic_type(name='City', model=City)
  class CityType:
      ibge: auto
      name: auto
      ddd: auto
  
  
  @type(name='Coordinates')
  class CoordinatesType:
      latitude: float
      longitude: float
      altitude: float
  
  
  @pydantic_type(name='Address', model=Address)
  class AddressType:
      zipcode: auto
      city: CityType
      state: StateType
      neighborhood: auto
      complement: auto
      coordinates: CoordinatesType | None = None
  ```