fix: remove type field from registration changeset

Author: matheusm18

lib/safira/accounts/user.ex

@@ -77,8 +77,8 @@ defmodule Safira.Accounts.User do
   """
   def registration_changeset(user, attrs, opts \\ []) do
     user
-    |> cast(attrs, @required_fields ++ @optional_fields)
-    |> validate_required(@required_fields |> Enum.reject(&(&1 in [:email, :password, :handle])))
+    |> cast(attrs, (@required_fields ++ @optional_fields) -- [:type])
+    |> validate_required(@required_fields |> Enum.reject(&(&1 in [:email, :password, :handle, :type])))
     |> validate_email(opts)
     |> validate_handle()
     |> validate_password(opts)