Update flake8 from 3.5.0 to 3.8.4 (#19)

pyup-bot · awarecan · web-flow · commit b612b2fddbbc · 2020-10-19T00:00:52.000-07:00
Co-authored-by: Jason Hu &lt;awarecan@users.noreply.github.com&gt;
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==20.2.4
 bump2version==0.5.11
 wheel==0.35.1
 watchdog==0.10.3
-flake8==3.5.0
+flake8==3.8.4
 tox==3.20.1
 coverage==5.3
 Sphinx==1.7.1
