Update the user_factory to the user_attrs_factory.

test/support/factories/UserFactory.ex

@@ -1,7 +1,7 @@
 defmodule LinkShortener.Factories.UserFactory do
   use ExMachina
 
-  def user_factory do
+  def user_attrs_factory() do
     %{
       email: sequence(:email, &"user-#{&1}@mail.com"),
       password: "some password"

test/support/fixtures/accounts_fixtures.ex

@@ -32,7 +32,7 @@ defmodule LinkShortener.AccountsFixtures do
   end
 
   def user_token_fixture(attrs \\ %{}) do
-    user_params = UserFactory.user_factory()
+    user_params = UserFactory.user_attrs_factory()
 
     {:ok, %User{} = user} = Accounts.register_user(user_params)
     {:ok, token, _claims} = Guardian.encode_and_sign(user)