gnucash-on-flatpak master: Update xmlsec to 1.3.9

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-flatpak/commit/87b083e1 (commit)
	from  https://github.com/Gnucash/gnucash-on-flatpak/commit/982ef543 (commit)



commit 87b083e141534cafe30978a870b02e1018909646
Author: John Ralls <jralls at ceridwen.us>
Date:   Thu Dec 25 17:51:53 2025 -0800

    Update xmlsec to 1.3.9
    
    As usual the old version is moved to their archive page.



Summary of changes:
 modules/aqbanking.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)