Update endpointTypeEncoded -> label

Fixes https://github.com/github/ml-ql-adaptive-threat-modeling/issues/1821

Author: annarailton

javascript/ql/experimental/adaptivethreatmodeling/modelbuilding/extraction/ExtractEndpointMapping.ql

@@ -25,4 +25,4 @@ where
     queryName = "XssATM.ql" and c instanceof XssATM::DomBasedXssAtmConfig
   ) and
   e = c.getASinkEndpointType()
-select queryName, e.getEncoding() as endpointTypeEncoded
+select queryName, e.getEncoding() as label