MQE-1187: Fix MFTF skipped tests

- Test flaky timing fix, brittle test fix

Author: KevinBKozan

app/code/Magento/Customer/Test/Mftf/ActionGroup/AdminDeleteCustomerActionGroup.xml

@@ -12,6 +12,7 @@
             <argument name="customerEmail"/>
         </arguments>
         <amOnPage url="{{AdminCustomerPage.url}}" stepKey="navigateToCustomersPage"/>
+        <conditionalClick selector="{{AdminCustomerFiltersSection.clearAll}}" dependentSelector="{{AdminCustomerFiltersSection.clearAll}}" visible="true" stepKey="clickClearFilters"/>
         <click stepKey="chooseCustomer" selector="{{AdminCustomerGridMainActionsSection.customerCheckbox(customerEmail)}}"/>
         <click stepKey="openActions" selector="{{AdminCustomerGridMainActionsSection.actions}}"/>
         <waitForPageLoad stepKey="waitActions"/>

app/code/Magento/Customer/Test/Mftf/Section/AdminCustomerFiltersSection.xml

@@ -15,6 +15,6 @@
         <element name="emailInput" type="input" selector="input[name=email]"/>
         <element name="apply" type="button" selector="button[data-action=grid-filter-apply]" timeout="30"/>
         <element name="clearAllFilters" type="text" selector=".admin__current-filters-actions-wrap.action-clear"/>
-        <element name="clearAll" type="button" selector=".action-tertiary.action-clear"/>
+        <element name="clearAll" type="button" selector=".admin__data-grid-header .action-tertiary.action-clear"/>
     </section>
 </sections>

app/code/Magento/Tax/Test/Mftf/Test/StorefrontTaxQuoteCheckoutTest.xml

@@ -312,6 +312,7 @@
             <argument name="Address" value="US_Address_CA"/>
         </actionGroup>
         <click stepKey="clickNext" selector="{{CheckoutShippingSection.next}}"/>
+        <waitForPageLoad stepKey="waitForAddressToLoad"/>
         <see stepKey="seeAddress" selector="{{CheckoutShippingSection.defaultShipping}}" userInput="{{SimpleTaxCA.state}}"/>
         <see stepKey="seeShipTo" selector="{{CheckoutPaymentSection.shipToInformation}}" userInput="{{SimpleTaxCA.state}}"/>
 
@@ -329,6 +330,7 @@
             <argument name="Address" value="US_Address_NY"/>
         </actionGroup>
         <click stepKey="clickNext2" selector="{{CheckoutShippingSection.next}}"/>
+        <waitForPageLoad stepKey="waitForShippingToLoad"/>
         <see stepKey="seeShipTo2" selector="{{CheckoutPaymentSection.shipToInformation}}" userInput="{{SimpleTaxNY.state}}"/>
 
         <!-- Assert that taxes are applied correctly for NY -->