Test failures with `pylint` 2.11.1

[risicle]

Hi,

In building the NixOS package for this, we noticed the tests started failing when we bumped our pylint from 2.10.2 to 2.11.1:

=================================== FAILURES ===================================
_____________ test_everything[func_noerror_foreign_key_attributes] _____________

test_file = FunctionalTest:func_noerror_foreign_key_attributes

    @pytest.mark.parametrize("test_file", TESTS, ids=TESTS_NAMES)
    def test_everything(test_file):
        # copied from pylint.tests.test_functional.test_functional
        LintTest = PylintDjangoLintModuleTest(test_file)
        LintTest.setUp()
>       LintTest._runTest()
E       AssertionError: Wrong results for file "func_noerror_foreign_key_attributes":
E       
E       Unexpected in testdata:
E         19: consider-using-f-string

pylint_django/tests/test_func.py:98: AssertionError
________________ test_everything[external_factory_boy_noerror] _________________

test_file = FunctionalTest:external_factory_boy_noerror

    @pytest.mark.parametrize("test_file", TESTS, ids=TESTS_NAMES)
    def test_everything(test_file):
        # copied from pylint.tests.test_functional.test_functional
        LintTest = PylintDjangoLintModuleTest(test_file)
        LintTest.setUp()
>       LintTest._runTest()
E       AssertionError: Wrong results for file "external_factory_boy_noerror":
E       
E       Unexpected in testdata:
E         25: consider-using-f-string
E         32: consider-using-f-string

pylint_django/tests/test_func.py:98: AssertionError

Full build log available at https://hydra.nixos.org/log/cd3f9k3rmly3d9k0zan0gazrb3znqhys-python3.8-pylint-django-2.4.4.drv where all requirements exact versions can also be seen.

This is pylint-django 2.4.4. Same issue on linux and macos builds.

[carlio]

Fixed on the master branch now.