refactor: Remove async from rank changes check function

discord_bot.py

@@ -133,7 +133,7 @@ async def heartbeat():
 async def check_rank_changes(channel):
   logger.info("Checking for rank changes")
   try:
-    data = await dota.check_rank_changes_for_discord()
+    data = dota.check_rank_changes_for_discord()
     if data:
       logger.info(f"Sending rank changes: {data}")
       await channel.send(content=data['content'], embeds=[discord.Embed.from_dict(embed) for embed in data['embeds']])

dota.py

@@ -386,7 +386,7 @@ async def serialize_match_for_discord(match_):
   return data
 
 
-async def check_rank_changes_for_discord():
+def check_rank_changes_for_discord():
   """Check for rank changes among all active friends and format for Discord"""
   rank_changes = []