Bump src/deps/Imath from 443b7f0 to 0436624 (#1484)

Bumps [src/deps/Imath](https://github.com/AcademySoftwareFoundation/Imath) from `443b7f0` to `0436624`.
- [Release notes](https://github.com/AcademySoftwareFoundation/Imath/releases)
- [Commits](AcademySoftwareFoundation/Imath@443b7f0...0436624)

---
updated-dependencies:
- dependency-name: src/deps/Imath
  dependency-type: direct:production
...

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