Update ChatModels.swift

[ARK-420]

• gpt 4o mini
• gpt 4o 06-0802024

Describe your changes

Issue ticket number and link

Checklist before requesting a review

• [ ] I have performed a self-review of my code
• [ ] If it is a core feature, I have added thorough tests.
• [ ] Do we need to implement analytics?
• [ ] Will this be part of a product update? If yes, please write one phrase about this update.