fix unused imports

src/de_quoi_parle_le_monde/http.py

@@ -1,5 +1,5 @@
 from attrs import define
-from aiohttp_client_cache import CachedSession, SQLiteBackend
+from aiohttp_client_cache import SQLiteBackend
 from aiohttp_client_cache.session import CacheMixin
 from aiohttp.client import ClientSession
 from aiolimiter import AsyncLimiter

src/de_quoi_parle_le_monde/internet_archive.py

@@ -2,8 +2,6 @@ from attrs import frozen
 from typing import Optional, ClassVar, NewType
 from datetime import date, datetime, timedelta
 import cattrs
-import asyncio
-from bs4 import BeautifulSoup
 
 from de_quoi_parle_le_monde.http import HttpSession