stack/erp5: fix NameError in IOS test

This repairs a NameError introduced in 397726e1 (erp5/neoppod/slapos:
Support for python3 from aurel/zope4 branch., 2022-02-03) that was
causing ERP5-IOS test suite to fail in loop.

stack/erp5/buildout.hash.cfg

@@ -66,7 +66,7 @@ md5sum = 0969fbb25b05c02ef3c2d437b2f4e1a0
 
 [template-run-zelenium]
 filename = run-zelenium-test.py.in
-md5sum = 274365ebbade26558ca4836837e781aa
+md5sum = 38653020296e43f84a93b99cb35aaef6
 
 [template]
 filename = instance.cfg.in

stack/erp5/run-zelenium-test.py.in

@@ -10,6 +10,7 @@ from selenium.webdriver.common.by import By
 from selenium.common.exceptions import TimeoutException
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
+import six
 import time
 from urllib import urlopen
 import json
@@ -32,7 +33,7 @@ def main():
   test_suite = args.test_suite
   revision = args.revision
 
- 
+
   if not parser_configuration['server-url'] or not parser_configuration['remote-access-url']:
     sys.exit(-1)
 
@@ -50,7 +51,7 @@ def main():
       "&resultsUrl=../getId" \
       "&__ac_name=%s" \
       "&__ac_password=%s" % (parser_configuration['remote-access-url'], {{ repr(user) }}, {{ repr(password) }})
-    
+
   # Wait until all activities are finished...
   wait_url = "%s/erp5/ActivityTool_getSqlStatisticList" \
       "?__ac_name=%s" \
@@ -75,10 +76,10 @@ def main():
     except Exception:
       traceback.print_exc()
     time.sleep(600)
- 
+
   tool = taskdistribution.TaskDistributor(portal_url=args.master_url)
   browser = webdriver.Remote(parser_configuration['server-url'] , parser_configuration['desired-capabilities'] )
-  
+
   try:
     agent = browser.execute_script("return navigator.userAgent")
     print url