[reg] Fatal error C1067 when building qtopcua with latest moc changes

Build of qtopcua with the latest moc changes in qtbase fails with:

~~~/moc_qopcuanodeids.cpp(40): fatal error C1067: compiler limit: 64K limit on size of a type record has been exceeded

This is a debug build with VS2022, cl version 19.41.34123. The issue would probably not happen in a release build.

The type in question is https://doc.qt.io/qt-6/qopcua-nodeids.html#Namespace0-enum, which is massive and probably generated from a spec.

But if we do that kind of thing, then it’s probably a safe bet that clients will also generate meta-object relevant types from some spec or some other APIs (such as a COM type library).

At the very least, this will break the submodule update once the qtbase changes reach qtopcua.