Merge pull request #185 from kk6/dependabot/pip/tox-3.19.0

Bump tox from 3.17.1 to 3.19.0

Author: kk6

poetry.lock

@@ -39,7 +39,7 @@ pytest-flake8 = "^1.0"
 responses = "^0.10.15"
 pytest-runner = "^5.2"
 towncrier = {version = "^19.2", optional = true}
-tox = "^3.17"
+tox = "^3.19"
 sphinx = {version = "^3.1", optional = true}
 sphinx_rtd_theme = {version = "^0.5.0", optional = true}
 pre-commit = {version = "^2.1", optional = true}