Cap tox version to <4 for now

domdfcoding · domdfcoding · commit c8012f711d36 · 2023-02-07T15:42:02.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,3 @@
 domdf-python-tools>=2.8.1
 pytest>=6.2.2
-tox>=3.23.0
+tox<4,>=3.23.0
