MTS-683: Make elasticsearch6 default search engine in Jenkins build

Author: Joan He

dev/tests/functional/testsuites/Magento/Mtf/TestSuite/InjectableTests/basic_green.xml

@@ -22,7 +22,7 @@
     </rule>
     <rule scope="variation">
         <deny>
-            <tag group="test_type" value="3rd_party_test, 3rd_party_test_single_flow" />
+            <tag group="test_type" value="3rd_party_test, 3rd_party_test_single_flow, mysql_search" />
             <tag group="stable" value="no" />
             <tag group="mftf_migrated" value="yes" />
             <tag group="to_maintain" value="yes" />

dev/tests/functional/testsuites/Magento/Mtf/TestSuite/InjectableTests/elastic_search.xml renamed to dev/tests/functional/testsuites/Magento/Mtf/TestSuite/InjectableTests/mysql_search.xml

@@ -22,7 +22,7 @@
     </rule>
     <rule scope="variation">
         <deny>
-            <tag group="test_type" value="3rd_party_test, 3rd_party_test_single_flow, mysql_search" />
+            <tag group="test_type" value="3rd_party_test, 3rd_party_test_single_flow" />
             <tag group="stable" value="no" />
             <tag group="mftf_migrated" value="yes" />
             <tag group="to_maintain" value="yes" />