refactor: switch api and gateway to V8 (#4879)

Co-authored-by: Jan <66554238+Vaporox@users.noreply.github.com>

src/errors/Messages.js

@@ -5,6 +5,7 @@ const { register } = require('./DJSError');
 const Messages = {
   CLIENT_INVALID_OPTION: (prop, must) => `The ${prop} option must be ${must}`,
   CLIENT_INVALID_PROVIDED_SHARDS: 'None of the provided shards were valid.',
+  CLIENT_MISSING_INTENTS: 'Valid intents must be provided for the Client.',
 
   TOKEN_INVALID: 'An invalid token was provided.',
   TOKEN_MISSING: 'Request to use token, but token was unavailable to the client.',