qa/tasks/mgr/dashboard: Fix login expires too soon

[sebastian-philipp]

Change set-session-expire back to original value running test_session_expire.

This fixes:

======================================================================
FAIL: test_create (tasks.mgr.dashboard.test_rbd.RbdTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/sebastian/Repos/ceph/qa/tasks/mgr/dashboard/helper.py", line 23, in decorate
    return func(self, *args, **kwargs)
  File "/home/sebastian/Repos/ceph/qa/tasks/mgr/dashboard/test_rbd.py", line 58, in test_create
    self.assertStatus(200)
  File "/home/sebastian/Repos/ceph/qa/tasks/mgr/dashboard/helper.py", line 119, in assertStatus
    self.assertEqual(self._resp.status_code, status)
AssertionError: 401 != 200

Relates to #20865

Signed-off-by: Sebastian Wagner sebastian.wagner@suse.com

[rjfd]

lgtm