CLSA-2026-1782909743 ImageMagick: Fix of 2 CVEs

CVE-2026-33901: out-of-bounds heap write in the MVG decoder RenderMVGContent when copying oversized gradient/pattern bodies into the token buffer - CVE-2026-33908: stack exhaustion via uncontrolled recursion in DestroyXMLTree when freeing a deeply nested XML document...