Update the ini file.

LTLA · LTLA · commit 1ff1d7e5b7f7 · 2024-12-13T16:19:16.000-08:00
diff --git a/tox.ini b/tox.ini
@@ -15,6 +15,7 @@ setenv =
 passenv =
     HOME
     SETUPTOOLS_*
+    GYPSUM_CACHE_DIR
 extras =
     testing
 commands =
