Use ** to match directories for coverage 6.6.0b1 [skip ci]

issue11844

tox.ini

@@ -3,8 +3,8 @@ envlist = {py37,py38,py39,py310}-{sqlite,postgresql}
 
 [testenv]
 commands =
-    coverage run --include=.*/sale_credit_limit/* -m unittest discover -s tests
-    coverage report --include=.*/sale_credit_limit/* --omit=*/tests/*
+    coverage run --include=./**/sale_credit_limit/* -m unittest discover -s tests
+    coverage report --include=./**/sale_credit_limit/* --omit=*/tests/*
 deps =
     coverage
     postgresql: psycopg2 >= 2.7.0