GUI: fix qt6 transition

This resolves #327 (closed)

For the transition to Qt6 the construction

QVector::fromStdVector(stdvec)

was replaced by

QVector(stdvec.begin(),stdvec.end())

It turned out that they are not fully equivalent, I don't know why.

GUI/Model/Job/FitParameterContainerItem.cpp

@@ -97,7 +97,7 @@ bool FitParameterContainerItem::isEmpty()
 //! Propagate values to the corresponding parameter tree items of parameterContainer.
 
 void FitParameterContainerItem::setValuesInParameterContainer(
-    const QVector<double>& values, ParameterContainerItem* parameterContainer)
+    const std::vector<double>& values, ParameterContainerItem* parameterContainer)
 {
     ASSERT(parameterContainer);