textproc/expat2: Update to 2.8.2
Fixes multiple security issues and bugs
Changelog: https://github.com/libexpat/libexpat/blob/R_2_8_2/expat/Changes
PR: 296191
Reviewed by: desktop (arrowd)
Security: CVE-2026-50219
CVE-2026-56131 CVE-2026-56132 CVE-2026-56403 CVE-2026-56404 CVE-2026-56405 CVE-2026-56406 CVE-2026-56407 CVE-2026-56408 CVE-2026-56409 CVE-2026-56410 CVE-2026-56411 CVE-2026-56412