Fix/key auth

[nihiragarwal24]

Description

Added a check to verify llm api keys

Solution and Design

Whenever a user comes to the app and saves their api keys, we will once verify their api keys by calling list_models api. If it doesn't work, it surely means its a bad key

Test Plan

Tried it with bogus and verified keys. It worked perfectly.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Docs update

Checklist

• My pull request is atomic and focuses on a single change.
• I have read the contributing guide and my code conforms to the guidelines.
• I have documented my changes clearly and comprehensively.
• I have added the required tests.

[codecov]

Codecov Report

Patch coverage: 75.00% and project coverage change: +0.09 🎉

Comparison is base (1ed1696) 58.29% compared to head (5b5ac10) 58.38%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #790      +/-   ##
==========================================
+ Coverage   58.29%   58.38%   +0.09%     
==========================================
  Files         156      157       +1     
  Lines        6306     6327      +21     
  Branches      656      656              
==========================================
+ Hits         3676     3694      +18     
- Misses       2482     2485       +3     
  Partials      148      148              

Impacted Files	Coverage Δ
superagi/llms/base_llm.py	70.58% <50.00%> (-0.85%)	⬇️
superagi/llms/google_palm.py	78.37% <75.00%> (+1.71%)	⬆️
superagi/llms/openai.py	66.66% <75.00%> (+3.25%)	⬆️
...eragi/models/types/validate_llm_api_key_request.py	100.00% <100.00%> (ø)

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