Python3 ConfigParser is in configparser module

Ref: #30852

creolefuncs/lemonldap.py

@@ -31,7 +31,7 @@ def getSSOFilters():
     """ Convert former eole-sso filters to LemonLDAP filters
     """
     import glob
-    from ConfigParser import ConfigParser
+    from configparser import ConfigParser
 
     try:
        filters = { 'uid': "uid", "mail": "mail" }