QString fromUcs4 toUcs4 no longer parallel, roundtrip requires deprecated call

Since Qt6, QString::fromUcs4 has deprecated passing in uint * and requires char32_t * but there is no toUcs4 call that actually creates a list/array of char32_t only uint.

So you can not even round trip a call from toUcs4() to QString::fromUcs4 without either using a deprecated method or adding a reinterpret_cast.

This non-parallelism is silly. Please either remove the fromUcs4 that handles uint* from being deprecated or add in a version of toUcs4 that produces a list of char32_t.