Bump flake8 from 3.8.4 to 3.9.1

dependabot[bot] · web-flow · commit 1524d4602d15 · 2021-04-16T21:00:55.000Z
Bumps [flake8](https://gitlab.com/pycqa/flake8) from 3.8.4 to 3.9.1. - [Release notes](https://gitlab.com/pycqa/flake8/tags) - [Commits](https://gitlab.com/pycqa/flake8/compare/3.8.4...3.9.1) Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/requirements.txt b/requirements.txt
@@ -1,2 +1,2 @@
 black==20.8b1
-flake8==3.8.4 
+flake8==3.9.1 

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`black==20.8b1`
`2`		`-flake8==3.8.4`
	`2`	`+flake8==3.9.1`