Before this commit, calling gengo_authentication (executed from the
cron _send_translation_terms) returns an error when the python library
gengo is not found on the system.
If tried to request a synchronisation, got an error "NameError: name
'Gengo' is not defined"
Gengo variable was undefined as no imported.
closesodoo/odoo#40686
X-original-commit: 675b355954522caf7d72ab20cc431d19c5a05a8f
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>