[CI test] Trigger on update_tiny_2, skip local step, run 5 model types only
- Add update_tiny_2 to workflow branch triggers
- Comment out local creation steps (no-upload run) for faster CI iteration
- Add --model-types arg to update_tiny_models.py to restrict which model
types are created/uploaded (comma-separated, defaults to all)
- Workflow passes --model-types vit,llama,mistral3,qwen3,qwen3_vl
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>