update severity, testCaseId

Author: engcom-Charlie

app/code/Magento/Shipping/Test/Mftf/Test/AdminOpenShipmentViewPageWithWrongShipmentIdTest.xml

@@ -13,7 +13,8 @@
             <stories value="Shipment Page With Wrong Shipment Id"/>
             <title value="Open Shipment View Page with Wrong Shipment Id"/>
             <description value="Open Shipment View Page with Wrong Shipment Id."/>
-            <severity value="MAJOR"/>
+            <severity value="BLOCKER"/>
+            <testCaseId value="MC-39502"/>
             <group value="shipping"/>
         </annotations>
         <before>