gnucash: update to 2.6.19.
gnucash: update to 2.6.19.

Closes: #10075 [via git-merge-pr]

coredumb/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,floGik/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,floGik/void-packages,NeoChontrix/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,floGik/void-packages,coredumb/void-packages,floGik/void-packages,floGik/void-packages,necrophcodr/void-packages,floGik/void-packages,NeoChontrix/void-packages