[IMP] report: pass pdfreport_path to postprocess_pdf_report method
[IMP] report: pass pdfreport_path to postprocess_pdf_report method

Restore a feature lost due to refactoring in https://github.com/odoo/odoo/commit/e80238042c9d93d492ea8b06b0041aced0d81dcd
that pass the path to the report instead of the attachment content in order to perform changes to be part of the final result.

see https://github.com/odoo/odoo/pull/16936#issuecomment-300827614

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