SUSE-SU-2025:4436-1 Security update for libpng16

This update for libpng16 fixes the following issues: - CVE-2025-65018: Fixed heap buffer overflow in pngcombinerow triggered via pngimagefinishread bsc1254160 - CVE-2025-66293: Fixed LIBPNG out-of-bounds read in pngimagereadcomposite bsc1254480 - CVE-2025-64506: Fixed heap buffer over-read in...