Task Description
o-spreadsheet now allows to insert images in a spreadsheet, and
we also allow to export them inside .xlsx file. However, while this
works as intended in a standalone o-spreadsheet server, it doens't
work correctly in Odoo as the data of the image are not found while
we try ton convert the spreadsheet to an xlsx file. This PR aims to
simplify the request made to get the binary data of the image file.
Related task
closesodoo/odoo#139549
Task: 3524473
X-original-commit: 301a98c
Signed-off-by: Rémi Rahir (rar) <rar@odoo.com>