chore: update python packages + formatting + cleanup (#3221)

lnbits/fiat/base.py

@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
-from typing import TYPE_CHECKING, AsyncGenerator, Coroutine, NamedTuple
+from collections.abc import AsyncGenerator, Coroutine
+from typing import TYPE_CHECKING, NamedTuple
 
 if TYPE_CHECKING:
     pass

lnbits/fiat/stripe.py

@@ -1,7 +1,8 @@
 import asyncio
 import json
+from collections.abc import AsyncGenerator
 from datetime import datetime, timedelta, timezone
-from typing import AsyncGenerator, Optional
+from typing import Optional
 from urllib.parse import urlencode
 
 import httpx