State that Python 3.12 isn't working right now

[CRD716]

psycopg/psycopg2#1628

python db_init.py currently fails on python 3.12 with

Traceback (most recent call last):
  File "E:\Installs\gpt-pilot\pilot\db_init.py", line 3, in <module>
    from database.database import create_tables, drop_tables
  File "E:\Installs\gpt-pilot\pilot\database\__init__.py", line 1, in <module>
    from .database import database_exists, create_database, save_app
  File "E:\Installs\gpt-pilot\pilot\database\database.py", line 6, in <module>
    import psycopg2
  File "E:\Installs\gpt-pilot\pilot-env\Lib\site-packages\psycopg2\__init__.py", line 51, in <module>
    from psycopg2._psycopg import (                     # noqa
ImportError: DLL load failed while importing _psycopg: The specified module could not be found.

[CRD716]

Maybe consider upgrading to psycopg3?

[Umpire2018]

08280d4

Confimed.
It seems that python 3.12 doesn't work at the moment but thanks for pointing out.Please open a PR of update required python version in README.MD if you can.

[Umpire2018]

About #221 (comment)

I believe there is no need to add rust to requirements.txt because pip install tiktoken will finish the job. What tiktoken rely is theirs concern.

Maybe you can find help from openai/tiktoken#172 .