20221014 phoneNumber 改為非必填

app/Http/Requests/Api/SeminarSignUp/StoreRequest.php

@@ -15,7 +15,7 @@ class StoreRequest extends FormRequest
             'companyName'   => 'required',
             'companyEmail'  => 'required|email',
             'backupEmail'   => 'sometimes|nullable|email',
-            'phoneNumber'    => 'required',
+            // 'phoneNumber'    => 'required',
             'country'   => 'required',
             // 'registeredSession'   => 'required',    // 如果選擇台灣track則必填
             // 'lunchOptions'   => 'required',         // 如果選擇台灣track則必填