Fix Element with no type attribute warnings

- Added ternary to $elementType assignment.

CHANGELOG.md

@@ -9,6 +9,7 @@ Magento Functional Testing Framework Changelog
 
 ### Fixes
 * Fixed an issue where mftf would fail to parse test materials for extensions installed under `vendor`.
+* Fixed an issue where an `element` with no `type` would cause PHP warnings during test runs.
 
 2.3.9
 -----

src/Magento/FunctionalTestingFramework/Page/Handlers/SectionObjectHandler.php

@@ -67,7 +67,7 @@ private function __construct()
                     if (preg_match('/[^a-zA-Z0-9_]/', $elementName)) {
                         throw new XmlException(sprintf(self::ELEMENT_NAME_ERROR_MSG, $elementName, $sectionName));
                     }
-                    $elementType = $elementData[SectionObjectHandler::TYPE];
+                    $elementType = $elementData[SectionObjectHandler::TYPE] ?? null;
                     $elementSelector = $elementData[SectionObjectHandler::SELECTOR] ?? null;
                     $elementLocatorFunc = $elementData[SectionObjectHandler::LOCATOR_FUNCTION] ?? null;
                     $elementTimeout = $elementData[SectionObjectHandler::TIMEOUT] ?? null;