Static test case fix

Author: Mohamed-Asar

app/code/Magento/Cms/Test/Unit/Block/Adminhtml/Block/Widget/ChooserTest.php

@@ -320,7 +320,7 @@ public function testGetRowClickCallback(): void
         );
         $this->escaper->expects($this->once())
             ->method('escapeJs')
-            ->willReturnCallback(function($input) {
+            ->willReturnCallback(function ($input) {
                 return $input;
             });
         $jsCallback = $chooserBlock->getRowClickCallback();