CLSA-2026-1775649722 libxml2: Fix of 6 CVEs

CVE-2024-34459: fix buffer over-read in xmlHTMLPrintFileContext in xmllint - CVE-2025-8732: fix stack overflow from self-referencing SGML CATALOG entries - CVE-2026-0989: add RelaxNG include recursion limit - CVE-2026-0990: prevent infinite recursion in xmlCatalogListXMLResolveURI -...