feat(autogpt): Handle OpenAI API key exceptions gracefully

[kcze]

OPEN-337, OPEN-305

• Better handle no API keys or invalid ones
• Handle exception and exit when invalid key is provided
• Handle any APIError exception when trying to get OpenAI models and exit

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[Pwuts]

This PR needs updating because clean_input is no longer async (since 632686cfa5f5590642016bbc0f976a037ed3d361). I'll do that myself if you don't get to it.

[github-actions[bot]]

This pull request has conflicts with the base branch, please resolve those so we can evaluate the pull request.

[github-actions[bot]]

Conflicts have been resolved! 🎉 A maintainer will review the pull request shortly.

[kcze]

This PR needs updating because clean_input is no longer async (since 632686c). I'll do that myself if you don't get to it.

Done

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 25.92593% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 45.40%. Comparing base (dde0c70) to head (357e3cd). Report is 1 commits behind head on master.

Files	Patch %	Lines
autogpts/autogpt/autogpt/config/config.py	16.66%	15 Missing :warning:
autogpts/autogpt/autogpt/llm/api_manager.py	57.14%	3 Missing :warning:
autogpts/autogpt/autogpt/app/main.py	0.00%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6992      +/-   ##
==========================================
- Coverage   45.54%   45.40%   -0.15%     
==========================================
  Files         139      139              
  Lines        6514     6530      +16     
  Branches      915      917       +2     
==========================================
- Hits         2967     2965       -2     
- Misses       3397     3413      +16     
- Partials      150      152       +2     

Flag	Coverage Δ
Linux	45.40% <25.92%> (-0.04%)	:arrow_down:
Windows	?
autogpt-agent	45.40% <25.92%> (-0.12%)	:arrow_down:
macOS	?

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