This fixes the dependency version conflict between CrewAI and packages like
mem0ai that require openai>=1.90.0.
Changes:
- Updated openai constraint from ~=1.83.0 to >=1.83.0,<2.0.0
- Added tests to verify the constraint allows mem0ai compatibility
- Added tests to verify all OpenAI imports used by CrewAI are available
Fixes#4098
Co-Authored-By: João <joao@crewai.com>
