[FIX] account: skip banner on faulty PDF

create a vendor Bill
attach the PDF
go back to list view, select the bill > print Original Bills

Issue: a traceback is raised
Similar to f814c607
In some malformed PDF files zlib is unable to extract the data properly.

opw-3368907

closes odoo/odoo#125426

X-original-commit: 41f659e0
Signed-off-by: John Laterre (jol) <jol@odoo.com>