upgrade builtin SoQt version from 1.6.0 to 1.6.2

Proposing to upgrade the builtin SoQt version (1.6.0 -> 1.6.2) to make it possible to build against Qt6, which didn't work with the current version predating https://github.com/coin3d/soqt/pull/67

Checked to work with GeoModel 5.3.0.

@boudreau @tsulaia is it feasible?

changed title from Draft: upgrade builtin SoQT version from 1.6.0 to 1.6.2 to Draft: upgrade builtin SoQt version from 1.6.0 to 1.6.2

changed the description

Hi @jmaurer, thanks for pointing out this possibility.

Of course, we would like to move to Qt6, but we didn't start the process yet. The important thing with Qt6 is the migration of GMEX to it and verifying that all features work as expected.

However, we can certainly decouple the SoQt and Qt6 updates. So, we can start with this SQLite update and then we can start the migration to Qt6 at a later step.

I'll build on SoQt 1.6.2 and run some tests to see that everything is fine (I expect that, but just to double-check...), and then we can merge this MR.

Thanks, --Ric.

added CMake configuration Dependencies GeoModelIO labels

resolved all threads

marked this merge request as ready

added GeoModelVisualization label

removed GeoModelIO label

merged