release lock on boot

main.py

@@ -24,6 +24,7 @@ dp = Dispatcher(bot)
 
 
 async def check_updates():
+
     async with redis.lock('e621:update'):
         tag_list = [t.decode() for t in await redis.smembers('e621:subs')]
         tag_list.sort()
@@ -130,6 +131,7 @@ async def update(msg: Message):
 
 
 async def background_on_start():
+    await redis.lock('e621:update').release()
     while True:
         await check_updates()
         await asyncio.sleep(60)