update tox

Author: jtsodapop

tox.ini

@@ -9,5 +9,5 @@ deps =
     pytest < 7.0.0
     pytest-cases
     pytest-rerunfailures
-passenv = LABELBOX_TEST_API_KEY_PROD LABELBOX_TEST_API_KEY_STAGING LABELBOX_TEST_ENVIRON
+passenv = LABELBOX_TEST_API_KEY_PROD LABELBOX_TEST_API_KEY_STAGING LABELBOX_TEST_ENVIRON DA_GCP_LABELBOX_API_KEY
 commands = pytest {posargs}