[13.0][OU-ADD] apriori: rename pos_journal_image

[remytms]

From the readme of pos_payment_method_image in 13.0:

This module changes the pos_journal_image (12.0) to pos_payment_method_image (13.0) because of the model changing.

Migration script from 12.0 is not covered yet.

[legalsylvain]

this looks quite similar to #4330 ?
;-)

[remytms]

Thanks Sylvain. :)