Merge pull request #16 from behave/renovate/six-1.x

Update dependency six to v1.16.0

Author: jenisys

tasks/py.requirements.txt

@@ -10,7 +10,7 @@
 
 invoke==1.4.1
 pycmd
-six==1.15.0
+six==1.16.0
 
 # -- HINT: path.py => path (python-install-package was renamed for python3)
 path >= 13.1.0;    python_version >= '3.5'