[server/test] Turn "pull" method of LDAPFeedTestBase into a staticmethod
Because it does not use reference to "self" (which should be "cls" for
classmethod).
.. _auth_module:
:mod:`cubicweb.pyramid.auth`
----------------------------
.. automodule:: cubicweb.pyramid.auth
.. autofunction:: includeme
.. autoclass:: UpdateLoginTimeAuthenticationPolicy
:show-inheritance:
:members: