Fix subvscription expiration type

Signed-off-by: Matt Friedman <maf675@gmail.com>

Author: iMattPro

notification/method/webpush.php

@@ -371,7 +371,7 @@ public function get_ucp_template_data(helper $controller_helper, form_helper $fo
 			{
 				$subscriptions[] = [
 					'endpoint'			=> $subscription['endpoint'],
-					'expirationTime'	=> $subscription['expiration_time'],
+					'expirationTime'	=> (int) $subscription['expiration_time'],
 				];
 			}
 		}

tests/event/listener_test.php

@@ -188,7 +188,7 @@ public function get_ucp_template_data_data()
 				'method_data' => [
 					'id' => 'notification.method.phpbb.wpn.webpush',
 				],
-				[['endpoint' => 'https://web.push.test.localhost/foo2', 'expirationTime' => '0']],
+				[['endpoint' => 'https://web.push.test.localhost/foo2', 'expirationTime' => 0]],
 				true,
 			],
 			[	// wrong method, but with a valid webpush subscription, expect no code execution
@@ -204,7 +204,7 @@ public function get_ucp_template_data_data()
 				'method_data' => [
 					'id' => 'notification.method.phpbb.wpn.webpush',
 				],
-				[['endpoint' => 'https://web.push.test.localhost/foo3', 'expirationTime' => '1']],
+				[['endpoint' => 'https://web.push.test.localhost/foo3', 'expirationTime' => 1]],
 				true,
 			],
 			[	// webpush method with an invalid webpush subscription, expect code execution but no subscription data