o1 release breaks token usage stats

[lucapericlp]

Describe the bug

Traceback (most recent call last):
  File "/home/luca/.cache/pypoetry/virtualenvs/<NAME>-p2Ot1sDh-py3.12/bin/oaieval", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/luca/.cache/pypoetry/virtualenvs/<NAME>-p2Ot1sDh-py3.12/lib/python3.12/site-packages/evals/cli/oaieval.py", line 304, in main
    run(args)
  File "/home/luca/.cache/pypoetry/virtualenvs/<NAME>-p2Ot1sDh-py3.12/lib/python3.12/site-packages/evals/cli/oaieval.py", line 227, in run
    add_token_usage_to_result(result, recorder)
  File "/home/luca/.cache/pypoetry/virtualenvs/<NAME>-p2Ot1sDh-py3.12/lib/python3.12/site-packages/evals/cli/oaieval.py", line 279, in add_token_usage_to_result
    key: sum(u[key] if u[key] is not None else 0 for u in usage_events)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: unsupported operand type(s) for +: 'int' and 'dict'

To Reproduce

Run any eval

Code snippets

No response

OS

macOS

Python version

v3.12

Library version

3.0.1.post1