Update pytest version and related packages (#1820)

Co-authored-by: Raphael Michel <mail@raphaelmichel.de>

src/requirements/dev.txt

@@ -7,10 +7,10 @@ flake8==3.7.*
 codecov
 coverage
 pytest-cov
-pytest==5.3.*
+pytest==6.*
-pytest-django
+pytest-django==4.*
 isort
-pytest-rerunfailures==8.*
+pytest-rerunfailures==9.*
 pytest-mock==2.0.*
 responses
 potypo

src/setup.py

@@ -167,12 +167,12 @@ setup(
             'pep8-naming',
             'coveralls',
             'coverage',
-            'pytest==5.3.*',
+            'pytest==6.*',
-            'pytest-django',
+            'pytest-django==4.*',
             'pytest-xdist==1.31.*',
             'isort',
             'pytest-mock==2.0.*',
-            'pytest-rerunfailures==8.*',
+            'pytest-rerunfailures==9.*',
             'responses',
             'potypo',
             'freezegun',

src/tests/api/test_checkin.py

@@ -2,9 +2,11 @@ import datetime
 import time
 from decimal import Decimal
 from unittest import mock
+# deprecated: from django.utils.http import urlquote
+# use urlib instead
+from urllib.parse import quote as urlquote
 
 import pytest
-from django.utils.http import urlquote
 from django.utils.timezone import now
 from django_countries.fields import Country
 from django_scopes import scopes_disabled