Update tox.ini

Co-authored-by: Roberto Pastor Muela <[email protected]>

Author: AlejandroFernandezLuces

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 description = Default tox environments list
 envlist =
-    style,{tests310,tests311,tests312, tests313}{,-coverage},doc
+    style,{tests310,tests311,tests312,tests313}{,-coverage},doc
 skip_missing_interpreters = true
 isolated_build = true
 isolated_build_env = build