ACP2E-2021: Unable to switch to the second store in the front end

 - Fixed the static test failure.

Author: devarul

app/code/Magento/Customer/view/frontend/templates/js/customer-data.phtml

@@ -5,6 +5,8 @@
  */
 
 /** @var \Magento\Customer\Block\CustomerData $block */
+/** @var \Magento\Framework\Json\Helper\Data $jsonHelper */
+$jsonHelper = $block->getData('jsonHelper');
 
 // phpcs:disable Magento2.Templates.ThisInTemplate.FoundHelper
 ?>
@@ -14,8 +16,7 @@
             "Magento_Customer/js/customer-data": {
                 "sectionLoadUrl": "<?= $block->escapeJs($block->getCustomerDataUrl('customer/section/load')) ?>",
                 "expirableSectionLifetime": <?= (int)$block->getExpirableSectionLifetime() ?>,
-                "expirableSectionNames": <?= /* @noEscape */ $this->helper(\Magento\Framework\Json\Helper\Data::class)
-                    ->jsonEncode($block->getExpirableSectionNames()) ?>,
+                "expirableSectionNames": <?= /* @noEscape */ $jsonHelper->jsonEncode($block->getExpirableSectionNames()) ?>,
                 "cookieLifeTime": "<?= $block->escapeJs($block->getCookieLifeTime()) ?>",
                 "updateSessionUrl": "<?= $block->escapeJs(
                     $block->getCustomerDataUrl('customer/account/updateSession')