gnucash stable: Update another old version reference

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/4de4132c (commit)
	from  https://github.com/Gnucash/gnucash/commit/16c93c80 (commit)



commit 4de4132c4299281e74604793c75a5fff6e2bef3c
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Sun Apr 16 09:30:37 2023 +0200

    Update another old version reference



Summary of changes:
 README | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)