title: on_raw_reaction_add not triggering
body: <p>I was coding a discord bot, and I had a self-roles function so that members can give themselves some roles. But In my recent development the code broke. It's not giving me an error, but it's not even triggering.</p>
  <p>What I did was replace the contents of the function with a print, but the I don't get an output in the console. Can someone help?</p>
  <pre class="lang-py prettyprint-override"><code>import discord
  from discord.utils import get
  from discord.ext import commands
  intents = discord.Intents().all()
  intents.members = True
  intents.presences = True
  
  prefix = '!'
  client = commands.Bot(command_prefix=prefix, intents=intents)
  
  @client.event
  async def on_raw_reaction_add(payload):
      print('works')
  </code></pre>