Expire cache entries after 10minutes

And make the cache path configurable.

Closes: #53 (closed)

OnionSproutsBot/plugins/tor_browser.py

 import logging
+from datetime import timedelta
 from typing import Tuple, Optional
 
 import requests_cache
@@ -11,7 +12,7 @@ from OnionSproutsBot.config import data
 from OnionSproutsBot.database import Database
 from OnionSproutsBot.helpers import unpack_callback_data
 
-session = requests_cache.CachedSession('cache.db')
+session = requests_cache.CachedSession(data['bot']['cache_name'], expire_after=timedelta(minutes=10))
 
 platforms = {
     "android-aarch64": "Android 64-bit",