Analytic Reporting can now group entries by the product category linked to each line. This makes it easier for finance and business teams to compare costs and revenues across product categories without extra manual filtering or exports.

Add the related (non-stored) 'product_category' field on the account.analytic.line model to make it available in the Analytic Reporting "Group By"

task-6219418

Forward-Port-Of: odoo/odoo#266378