Make /Users/qt/Library/Saved Application State/ folder owned by Qt, writable and emptying it

Most if not all OSX CI logs show following warning:
Persistent UI failed to open file file://localhost/Users/qt/Library/Saved%20Application%20State/com.yourcompany.tst_languagechange.savedState/window_2.data: Permission denied (13)
That should be fixed by making /Users/qt/Library/Saved Application State/ folder owned by Qt and writable.