Move signal import to django.core (#1357)

* Move signal import to django.core

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update CHANGELOG.md and AUTHORS

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

AUTHORS

@@ -12,6 +12,7 @@ Adam Johnson
 Adam Zahradník
 Adheeth P Praveen
 Alan Crosswell
+Alan Rominger
 Alejandro Mantecon Guillen
 Aleksander Vaskevich
 Alessandro De Angelis

CHANGELOG.md

@@ -32,6 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * #1284 Allow to logout with no id_token_hint even if the browser session already expired
 * #1296 Added reverse function in migration 0006_alter_application_client_secret
 * #1336 Fix encapsulation for Redirect URI scheme validation
+* #1357 Move import of setting_changed signal from test to django core modules
 
 ### Removed
 * #1350 Remove support for Python 3.7 and Django 2.2

oauth2_provider/settings.py

@@ -18,8 +18,8 @@
 
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
+from django.core.signals import setting_changed
 from django.http import HttpRequest
-from django.test.signals import setting_changed
 from django.urls import reverse
 from django.utils.module_loading import import_string
 from oauthlib.common import Request