CLSA-2026-1771602192 libsoup: Fix of 8 CVEs

CVE-2026-1761: fix memory corruption when parsing multipart HTTP responses - CVE-2026-0719: fix integer overflow in NTLM authentication when processing excessively long passwords - added upstream tests for CVE-2024-52531, CVE-2025-32914, CVE-2025-4948 - merged CVE-2025-2784 and CVE-2025-32053 -...