MGASA-2026-0548 Updated libjxl package fixes security vulnerabilities

Uninitialized memory read in decoder due to incorrect optimization in patch handling. CVE-2025-12474 Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc. CVE-2025-70103 Out-of-bounds write in grayscal...