Update Pydantic to v2 and redis-om to v0.3.

[ProKil]

Closes #72

📑 Description

Update Pydantic to v2 and redis-om to v0.3. This PR is meant to be for v0.2 of sotopia, so please merge this after tagging v0.1.

Working, but still WIP: there are a few warnings to resolve

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed
• Branch name follows type/descript (e.g. feature/add-llm-agents)
• Ready for code review

ℹ Additional Information

[codecov]

Codecov Report

Attention: Patch coverage is 84.04255% with 15 lines in your changes missing coverage. Please review.

Project coverage is 69.39%. Comparing base (785669c) to head (861210c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sotopia/generation_utils/generate.py	27.27%	8 Missing ⚠️
sotopia/envs/evaluators.py	80.00%	3 Missing ⚠️
sotopia/agents/redis_agent.py	0.00%	2 Missing ⚠️
sotopia/database/persistent_profile.py	71.42%	2 Missing ⚠️

@@            Coverage Diff             @@
##             main     #138      +/-   ##
==========================================
- Coverage   69.42%   69.39%   -0.04%     
==========================================
  Files          56       56              
  Lines        2973     2973              
==========================================
- Hits         2064     2063       -1     
- Misses        909      910       +1     

Files with missing lines	Coverage Δ
sotopia/database/annotators.py	100.00% <100.00%> (ø)
sotopia/database/logs.py	95.74% <100.00%> (ø)
sotopia/database/serialization.py	97.86% <100.00%> (ø)
sotopia/database/session_transaction.py	77.27% <100.00%> (ø)
sotopia/renderers/base.py	78.94% <100.00%> (ø)
sotopia/agents/redis_agent.py	21.91% <0.00%> (ø)
sotopia/database/persistent_profile.py	90.56% <71.42%> (ø)
sotopia/envs/evaluators.py	89.50% <80.00%> (ø)
sotopia/generation_utils/generate.py	56.00% <27.27%> (ø)

... and 1 file with indirect coverage changes

[XuhuiZhou]

Overall, I think this is good, but should we also update the doc at the same time?

[ProKil]

Nothing from the usage perspective has changed. This can be verified by the fact that it passed all of the test cases for sotopia v0.1