SUSE-SU-2026:1368-1 Security update for libpng16

This update for libpng16 fixes the following issues: - CVE-2026-33416: use-after-free via pointer aliasing in pngsettRNS and pngsetPLTE can lead to arbitrary code execution bsc1260754. - CVE-2026-33636: out-of-bounds read/write in the palette expansion on ARM Neon can lead to information leak and...