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

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

src/util/UserFlags.js

@@ -14,6 +14,12 @@ class UserFlags extends BitField {}
  * @param {BitFieldResolvable} [bits=0] Bit(s) to read from
  */
 
+/**
+ * Bitfield of the packed bits
+ * @type {number}
+ * @name UserFlags#bitfield
+ */
+
 /**
  * Numeric user flags. All available properties:
  * * `DISCORD_EMPLOYEE`