[FIX] mrp: Add ACL for users for workcenter capacity

Add an ACL to allow read-only access for basic users to the workcenter
capacities. This avoids an error in the bom overview opening with a
simple MRP "user".

closes odoo/odoo#104893

Related: odoo/enterprise#33613
Signed-off-by: Arnold Moyaux (arm) <arm@odoo.com>