fix(Permissions): allow admin to override in the missing method (#5911)

src/util/Permissions.js

@@ -24,6 +24,16 @@ class Permissions extends BitField {
    * @typedef {string|bigint|Permissions|PermissionResolvable[]} PermissionResolvable
    */
 
+  /**
+   * Gets all given bits that are missing from the bitfield.
+   * @param {BitFieldResolvable} bits Bit(s) to check for
+   * @param {boolean} [checkAdmin=true] Whether to allow the administrator permission to override
+   * @returns {string[]}
+   */
+  missing(bits, checkAdmin = true) {
+    return checkAdmin && this.has(this.constructor.FLAGS.ADMINISTRATOR) ? [] : super.missing(bits, checkAdmin);
+  }
+
   /**
    * Checks whether the bitfield has a permission, or any of multiple permissions.
    * @param {PermissionResolvable} permission Permission(s) to check for