Updated files with 'repo_helper'.

Author: repo-helper[bot]

tox.ini

@@ -41,7 +41,7 @@ requires =
     pip>=21,!=22.2
     tox-envlist>=0.2.1
     tox~=3.0
-    virtualenv!=20.16.0
+    virtualenv!=20.16.0,<20.39
 
 [envlists]
 test = py37, py38, py39, py310, py311, py312, py313, pypy37, pypy38, pypy39