ACQE-6838 | Added pr_exclude as this is the 3rd party test

Author: manjusha729

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

@@ -18,7 +18,7 @@
             <features value="Shipping"/>
             <group value="3rd_party_integration"/>
             <group value="EnableUSPSShippingSuite"/>
-            <!--            <group value="pr_exclude"/>-->
+            <group value="pr_exclude"/>
         </annotations>
         <before>
             <!--Login as Admin-->