Update tox from 3.15.2 to 3.17.1

pyup-bot · pyup-bot · commit d40d0929431a · 2020-07-15T23:49:34.000+02:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 pytest==5.4.3
-tox==3.15.2
+tox==3.17.1
 flake8==3.8.3
 isort==4.3.21
 docutils==0.16
