Scheduled biweekly dependency update for week 33 (#970)

* Update black from 21.5b2 to 21.7b0
* Update isort from 5.8.0 to 5.9.3
* Update sphinx from 4.0.2 to 4.1.2
* Update twine from 3.4.1 to 3.4.2
* Update django-debug-toolbar from 3.2.1 to 3.2.2
* Update faker from 8.5.1 to 8.11.0

Author: pyup-bot

requirements/requirements-codestyle.txt

@@ -1,4 +1,4 @@
-black==21.5b2
+black==21.7b0
 flake8==3.9.2
 flake8-isort==4.0.0
-isort==5.8.0
+isort==5.9.3

requirements/requirements-documentation.txt

@@ -1,3 +1,3 @@
 recommonmark==0.7.1
-Sphinx==4.0.2
+Sphinx==4.1.2
 sphinx_rtd_theme==0.5.2

requirements/requirements-packaging.txt

@@ -1 +1 @@
-twine==3.4.1
+twine==3.4.2

requirements/requirements-testing.txt

@@ -1,6 +1,6 @@
-django-debug-toolbar==3.2.1
+django-debug-toolbar==3.2.2
 factory-boy==3.2.0
-Faker==8.5.1
+Faker==8.11.0
 pytest==6.2.4
 pytest-cov==2.12.1
 pytest-django==4.4.0