Point of Sale users can now set an additional unit of measure for products and enter sales quantities in that alternate unit. The system converts those quantities back to the product’s main unit at checkout, giving businesses more flexibility when selling items measured in different ways.

This commit introduces support for configuring and using a second unit of measure (UoM) for products in the same category.
- Added a Second UoM field (pos_second_uom) in products, restricted to the same category as the primary UoM.
- Users can configure a second UoM for better flexibility in POS.
- In the POS module, users can input quantities using the second UoM, which automatically converts them to the primary UoM during checkout.

This update adds or adjusts an internal GitHub workflow configuration for the project. It helps automate repository processes and does not introduce changes that business users would see in Odoo.