Merge pull request #1283 from VWS-Python/dependabot/pip/autoflake-1.4

Bump autoflake from 1.3.1 to 1.4

Author: adamtheturtle

dev-requirements.txt

@@ -6,7 +6,7 @@ Sphinx-Substitution-Extensions==2020.7.4.1
 Sphinx==3.2.1
 VWS-Python-Mock==2019.12.27.0
 VWS-Test-Fixtures==2020.8.2.0
-autoflake==1.3.1
+autoflake==1.4
 check-manifest==0.42
 doc8==0.8.1
 dodgy==0.2.1  # Look for uploaded secrets