[FIX] tools: skip inexistant model
[FIX] tools: skip inexistant model

When trying to generate translation for a model that is not present in
the registry (leftover of migration?), the code used to return
self.browse(), expecting an empty recordset.

self was however a TranslationModuleReader that has no browse method
return empty recordset with no model specified

closes odoo/odoo#55570

X-original-commit: c004f00bdec83b7c56664425011db53db85da53a
Signed-off-by: Martin Trigaux (mat) <cc7c5be316e48d137cbb549833b85d91034d799d@odoo.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo