Security update for libraw

This update for libraw fixes the following issues: CVE-2026-5342: out-of-bounds read via LibRaw::nikonloadpaddedpackedraw bsc1261499. CVE-2026-20884: integer overflow and heap buffer overflow via deflatedngloadraw bsc1261671. CVE-2026-20889: heap-based buffer overflow in x3fthumbloaderbsc1261672...