Release notes:
https://raw.githubusercontent.com/pnggroup/libpng/v1.6.51/ANNOUNCE
Fixes CVE-2025-64505, CVE-2025-64506, CVE-2025-64720 & CVE-2025-65018.
Removed patch which is included in this release.
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 08ad91052b)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>