fix(Managers): fix typo in unsupported warning (#6338)

src/managers/GuildChannelManager.js

@@ -26,7 +26,7 @@ class GuildChannelManager extends CachedManager {
       cacheWarningEmitted = true;
       process.emitWarning(
         `Overriding the cache handling for ${this.constructor.name} is unsupported and breaks functionality.`,
-        'UnuspportedCacheOverwriteWarning',
+        'UnsupportedCacheOverwriteWarning',
       );
     }