Merge pull request #1 from leukeleu/test-dependencies

Include versions that are compatible with Python 3.6

setup.cfg

@@ -30,21 +30,14 @@ test =
     black~=22.3
     check-manifest==0.48
     flake8~=4.0.1
-    flake8-assertive~=2.1.0
-    flake8-black~=0.3.3
-    flake8-bugbear~=22.4.25
+    flake8-assertive>=1.3.0,<2.2.0
+    flake8-black~=0.3.0
+    flake8-bugbear~=22.7.1
     flake8-isort~=4.1.1
-    pep8-naming~=0.13.0
-    readme-renderer~=35.0
-
-    # Packaging
-    twine~=4.0.1
-    wheel~=0.37.0
+    pep8-naming>=0.12.0,<0.14.
 
     # Testing
     coverage~=6.2.0
-    factory-boy~=3.2.1
-    unittest-xml-reporting~=3.2.0
 
 [flake8]
 max-line-length = 80