slapos_metadata_transform_agent: Add arguments to DataAnalysis_executeDataOperation()

master/bt5/slapos_metadata_transform_agent/SkinTemplateItem/portal_skins/slapos_metadata_transform_agent/DataAnalysis_executeDataOperation.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string></string> </value>
+            <value> <string>**kw</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>