Since 54e9527ec2, a new session module is
used to access the session info. The legacy session uses also this
module to access the session info. This means that if a module uses the
legacy session, the new session.js needs to be added to the manifest.
closes odoo/odoo#73500
Related: odoo/enterprise#19581
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>