AC-106: Upgrade jQuery UI to latest version 1.12.1

Fixed spinner in captcha test

Author: kieuphan2406

app/code/Magento/Captcha/Test/Mftf/Test/StorefrontCaptchaCheckoutWithEnabledCaptchaTest.xml

@@ -59,6 +59,7 @@
         <actionGroup ref="CheckoutSelectFlatRateShippingMethodActionGroup" stepKey="selectFlatRate"/>
         <actionGroup ref="StorefrontCheckoutForwardFromShippingStepActionGroup" stepKey="goToReview"/>
         <actionGroup ref="AssertCaptchaVisibleOnSecondCheckoutStepActionGroup" stepKey="assertCaptchaIsVisible"/>
+        <waitForLoadingMaskToDisappear stepKey="waitForSpinner"/>
         <actionGroup ref="StorefrontFillCaptchaFieldOnCheckoutActionGroup" stepKey="placeOrderWithIncorrectValue">
             <argument name="captcha" value="{{WrongCaptcha.value}}"/>
         </actionGroup>