[FIX] tools: LRU doesn't have keys() method anymore
[FIX] tools: LRU doesn't have keys() method anymore

Since commit 1b30a78b, LRU is now based on OrderedDict and keys can be found
on dictionnary 'd' directly.

closes odoo/odoo#54672

Signed-off-by: Xavier Morel (xmo) <0f311f41b2be8e2b5de98776566d712cdc154ca4@odoo.com>

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