graphics/openexr: bugfix update → 3.1.9

https://github.com/AcademySoftwareFoundation/openexr/blob/v3.1.9/CHANGES.md#version-319-june-25-2023

Security: 06428d91-152e-11ee-8b14-dbdd62da85fb

(cherry picked from commit d8e18f30d1a00cbd669eb9ba6f04c0a6a1cb912f)