Docs: Correct the type of the $request_id parameter in privacy functions.

This applies to `wp_send_user_request()` and `wp_validate_user_request_key()`.

Follow-up to [43008].

Props skithund, dhruvang21, SergeyBiryukov.
Fixes #63682.

git-svn-id: https://develop.svn.wordpress.org/trunk@60489 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-includes/user.php

@@ -4802,7 +4802,7 @@ function wp_user_request_action_description( $action_name ) {
  *
  * @since 4.9.6
  *
- * @param string $request_id ID of the request created via wp_create_user_request().
+ * @param int $request_id ID of the request created via wp_create_user_request().
  * @return true|WP_Error True on success, `WP_Error` on failure.
  */
 function wp_send_user_request( $request_id ) {
@@ -4976,7 +4976,7 @@ function wp_generate_user_request_key( $request_id ) {
  *
  * @since 4.9.6
  *
- * @param string $request_id ID of the request being confirmed.
+ * @param int    $request_id ID of the request being confirmed.
  * @param string $key        Provided key to validate.
  * @return true|WP_Error True on success, WP_Error on failure.
  */