[pkg] Fix extra packages not installable For instance `pip install -e ".[pyramid]"` should install the pyramid dependencies. A typo caused all these extra packages to not be found by pip. Closes #16121322.

.. _rset_module:

:mod:`cubicweb.rset`
====================

.. automodule:: cubicweb.rset

    .. autoclass:: ResultSet
        :members: