fix(Two_Factor_Totp): setting user_id type to integer instead of number

current_user_can() expects user_id to be integer

Fixes WordPress#559
Fixes WordPress#557

providers/class-two-factor-totp.php

@@ -70,7 +70,7 @@ public function register_rest_routes() {
 					'args'                => array(
 						'user_id' => array(
 							'required' => true,
-							'type'     => 'number',
+							'type'     => 'integer',
 						),
 					),
 				),
@@ -83,7 +83,7 @@ public function register_rest_routes() {
 					'args'                => array(
 						'user_id' => array(
 							'required' => true,
-							'type'     => 'number',
+							'type'     => 'integer',
 						),
 						'key'     => array(
 							'type'              => 'string',
@@ -223,7 +223,7 @@ public static function generate_qr_code_url( $user, $secret_key ) {
 
 		/**
 		 * Filter the Label for the TOTP.
-		 * 
+		 *
 		 * Must follow the TOTP format for a "label". Do not URL Encode.
 		 *
 		 * @see https://github.com/google/google-authenticator/wiki/Key-Uri-Format#label