Static tests stabilization

Author: ishakhsuvarov

app/code/Magento/Checkout/view/frontend/web/template/payment.html

@@ -16,7 +16,7 @@
             <!--/ko-->
         <!--/ko-->
         <form id="co-payment-form" class="form payments" novalidate="novalidate">
-            <input data-bind='attr: {value: getFormKey()}' type="hidden" name="form_key"/>
+            <input data-bind='attr: {value: getFormKey()}' type="hidden" name="form_key">
             <fieldset class="fieldset">
                 <legend class="legend">
                     <span data-bind="i18n: 'Payment Information'"></span>

app/code/Magento/Sales/Controller/Adminhtml/Order/Invoice/Save.php

@@ -30,7 +30,7 @@ class Save extends \Magento\Backend\App\Action implements HttpPostActionInterfac
      *
      * @see _isAllowed()
      */
-    const ADMIN_RESOURCE = 'Magento_Sales::sales_invoice';
+   public const ADMIN_RESOURCE = 'Magento_Sales::sales_invoice';
 
     /**
      * @var InvoiceSender