Fix passing of matrix_appservice_discord_auth_usePrivilegedIntents

roles/matrix-bridge-appservice-discord/templates/config.yaml.j2

@@ -36,7 +36,7 @@ auth:
   botToken: {{ matrix_appservice_discord_bot_token }}
   # You must enable "Privileged Gateway Intents" in your bot settings on discord.com (e.g. https://discord.com/developers/applications/12345/bot)
   # for this to work
-  usePrivilegedIntents: false
+  usePrivilegedIntents: {{ matrix_appservice_discord_auth_usePrivilegedIntents|to_json }}
 logging:
   # What level should the logger output to the console at.
   console: "warn" #silly, verbose, info, http, warn, error, silent