Launching with Python3.9 fails with TypeError

[Eusebius]

Describe the bug Starting torbot with Python 3.9 (after poetry install or pip install -r requirements.txt) results in a TypeError (because of a "pipe" syntax included in 3.10?).

To Reproduce Steps to reproduce the behavior:

1. Live in a Linux environment with Python3.9 and Poetry
2. git clone https://github.com/DedSecInside/TorBot.git torbot
3. cd torbot
4. poetry install
5. poetry run python torbot -h
6. Get a TypeError exception with the following stacktrace:

   Traceback (most recent call last):
   File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
   return _run_code(code, main_globals, None,
   File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
   exec(code, run_globals)
   File "<redacted>/torbot/torbot/__main__.py", line 15, in <module>
   from modules.linktree import LinkTree
   File "<redacted>/torbot/torbot/modules/linktree.py", line 43, in <module>
   class LinkTree(Tree):
   File "<redacted>/torbot/torbot/modules/linktree.py", line 54, in LinkTree
   def _append_node(self, id: str, parent_id: str | None) -> None:
   TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'

Expected behavior Syntactic help displayed in terminal.

Desktop (please complete the following information):

• OS: Debian 11 (5.10.0-28-amd64, x86_64)
• Python version: 3.9.2
• Torbot version: commit 98901ac on dev branch.

Additional context Other versions lead to other errors in my environment:

• v4.0.0 or current main can't find a __main__ module (main.py is not renamed yet)
• v3.1.2 leads to an AttributeError in modules/config.py (module 'logging' has no attribute 'getLevelNamesMapping')