Merge pull request #217 from infOpen/pyup-update-tox-3.16.1-to-3.17.1

Update tox to 3.17.1

Author: achaussier

requirements.txt

@@ -2,4 +2,4 @@ docker==4.2.2
 molecule==2.19.0
 pytest==5.4.3
 python-vagrant==0.5.15
-tox==3.16.1
+tox==3.17.1