fix(bot): 🚑 Migrate to serverless redis.

procs/flush_messages.py

@@ -9,7 +9,7 @@ async def flush():
 
     import asyncpg.exceptions
 
-    import redis.asyncio as aredis
+    import upstash_redis.asyncio as aredis
 
     from payphone.db import models
 
@@ -31,7 +31,7 @@ async def flush():
         log.debug("Skipping flushing. No calls to flush.")
         return
 
-    log.info("Flushing messages for %s calls." , len(call_ids))
+    log.info("Flushing messages for %s calls.", len(call_ids))
 
     pipe = redis.pipeline()
 
@@ -65,7 +65,7 @@ async def flush():
             constants.CALL_MESSAGE_FROM_PROPAGATION_TEMPLATE % call_id,
             constants.CALL_MESSAGES_TEMPLATE % call_id,
             constants.CALL_MESSAGE_REPLIES_TEMPLATE % call_id,
-            constants.CALL_IS_ACTIVE % call_id
+            constants.CALL_IS_ACTIVE % call_id,
         )
 
         await pipe.execute()