AC-206: Updated and renamed the extesnions-ruleset.xml

Author: sivaschenko

Magento2/customizations-ruleset.xml renamed to Magento2/extensions-ruleset.xml

@@ -326,6 +326,15 @@
         <severity>8</severity>
         <type>warning</type>
     </rule>
+    <rule ref="Magento2.Legacy.ObsoleteConnection">
+        <severity>8</severity>
+        <type>warning</type>
+    </rule>
+    <rule ref="Magento2.Legacy.ObsoleteResponse">
+        <severity>8</severity>
+        <type>warning</type>
+    </rule>
+
     <!-- Severity 7 warnings: General code issues. -->
     <rule ref="Generic.Arrays.DisallowLongArraySyntax">
         <severity>7</severity>