feat: EK-1345: 发送email失败

common/helpers/Email.php

@@ -7,7 +7,7 @@ use Yii;
 
 class Email
 {
-    private static string $mailKey = '4f64981556009f8e9fc2e112a65d3be3-67bd41c2-4e17cb05';
+    private static $mailKey = '4f64981556009f8e9fc2e112a65d3be3-67bd41c2-4e17cb05';
 
     /**
      * @param string $email