Ticket 48497 - uncomment pytest from CI test

Description:  For some reason "import pytest" was commented out - this
              broke the tests.

https://fedorahosted.org/389/ticket/48497

Reviewed by: mreynolds (1 line commit rule)

dirsrvtests/tests/tickets/ticket48497_test.py

@@ -3,7 +3,7 @@ import sys
 import time
 import ldap
 import logging
-#import pytest
+import pytest
 from lib389 import DirSrv, Entry, tools, tasks
 from lib389.tools import DirSrvTools
 from lib389._constants import *
@@ -174,4 +174,4 @@ if __name__ == '__main__':
 #     test_ticket48497_homeDirectory_index_run(topo)
 
     CURRENT_FILE = os.path.realpath(__file__)
-    pytest.main("-s %s" % CURRENT_FILE)
+    pytest.main("-s %s" % CURRENT_FILE)