Replace the 3.10 style type hints with the traditional style.

[similato87]

Refactor: Replaced Python 3.10 style type hints with traditional Optional syntax for broader compatibility for #898.

[sweep-ai-deprecated]

Apply Sweep Rules to your PR?

• Apply: Ensure all new functions and classes have very clear, concise and up-to-date docstrings. Take gpt_engineer/ai.py as a good example.

[ErikBjare]

Format the code with black to fix the precommit check

[similato87]

Format the code with black to fix the precommit check

Finished all successfully, thanks!

[ATheorell]

Thanks for fixing