[FIX] stock: change UOM on product block - multi company

There is code to block the UOM changing if there are done moves.

Because it searches in non-sudo mode, it does NOT currently
stop you changing the UOM if the product has moves in a different
company.

closes odoo/odoo#133895

Signed-off-by: Tiffany Chang (tic) <tic@odoo.com>