graphics/openexr*: security update to 3.4.13

Changelog: https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.13
MFH: 2026Q2
PR: 296159

Security: CVE-2026-55373
OpenEXRUtil SampleCountChannel endEdit() can loop forever on UINT_MAX sample counts

Security: CVE-2026-55371
OpenEXRCore exr_attr_set_bytes() accepts NULL type_hint with positive hint_length

Security: CVE-2026-55059
OpenEXRUtil SampleCountChannel row setter heap out-of-bounds

Security: CVE-2026-54920
Integer Overflow and Use of Uninitialized Pointer leading to Invalid Delete in OpenEXRUtil Image Resize

Security: CVE-2026-53532
Unhandled assert abort in HTJ2K decoder via crafted QCD marker (DoS)

Pull Request: https://github.com/freebsd/freebsd-ports/pull/543

(cherry picked from commit 4b576f06bb0e6f8a936e003b9c74b2742d64d16a)