[requires.io] dependency update

Author: requires

tox.ini

@@ -128,7 +128,7 @@ deps =
     flake8==3.8.4
     mccabe==0.6.1
     pep8-naming==0.11.1
-    pycodestyle==2.6.0
+    pycodestyle==2.7.0
     pydocstyle==5.1.1
     pyflakes==2.3.0