SUSE-SU-2026:2337-1 Security update for libyang

This update for libyang fixes the following issues - CVE-2026-41401: use-after-free in lydparsersetdataflags when processing crafted YANG XML documents with specific metadata attributes bsc1266316. - CVE-2026-44673: integer overflow in lybreadstring of src/parserlyb.c leads to heap buffer overflo...