CLSA-2026-1771519663 libsoup: Fix of 2 CVEs

CVE-2026-1761: fix stack-based buffer overflow in multipart HTTP response parsing caused by incorrect length calculation in soupfilterinputstreamreaduntil - CVE-2026-0719: fix stack-based buffer overflow in NTLM authentication caused by integer overflow in md4sum with excessively long passwords...