[Acute-Eval] Mephisto 1.0 compatibility

[EricMichaelSmith]

Patch description

• Upgrade Acute-Eval frontend code to make it compatible with the style of output passing allowed by Mephisto 1.0
• Update package-lock file accordingly to work with Mephisto 1.0

Testing steps

python parlai/crowdsourcing/tasks/acute_eval/run.py
python parlai/crowdsourcing/tasks/acute_eval/fast_eval.py

[JackUrb]

Were there any required changes for backend review/process scripts?

[EricMichaelSmith]

Were there any required changes for backend review/process scripts?

@JackUrb Surprisingly not - this PR wraps the output in a 'final_data' key of a dict, as is required in acute_eval_agent_state.py and acute_eval_runner.py, and presumably Mephisto pre-1.0 did this automatically?

[JackUrb]

Ah okay that makes sense - the old solution we had for wrapping was hacky and inconsistent on the packaging + parsing side, so we did away with it. Good to know that keeping that data model for upgrades is as simple as doing the above.