graphics/openexr*: Security update to 3.4.10

Addresses security vulnerabilities

Changelog:
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10

Obtained from: GitHub repo
Security: CVE-2026-39886

		CVE-2026-40244
		CVE-2026-40250

Pull Request: https://github.com/freebsd/freebsd-ports/pull/511

(cherry picked from commit a096d170b8b4eaa6b2f8f9b54ecb616d14346a19)