SONARPY-2168 FunctionDescriptorToPythonTypeConverter should set STUB type origin

Author: ghislainpiot

python-frontend/src/main/java/org/sonar/python/semantic/v2/converter/FunctionDescriptorToPythonTypeConverter.java

@@ -46,7 +46,7 @@ public PythonType convert(ConversionContext ctx, FunctionDescriptor from) {
       .map(fqn -> (PythonType) ctx.lazyTypesContext().getOrCreateLazyType(fqn))
       .orElse(PythonType.UNKNOWN);
 
-    var typeOrigin = TypeOrigin.LOCAL;
+    var typeOrigin = TypeOrigin.STUB;
 
     var hasVariadicParameter = hasVariadicParameter(parameters);