* lang/qt/src/Makefile.am: Add new files.
* lang/qt/src/job.cpp (QuickJob): Move definition of constructor and
destructor and inclusion of the moc file to quickjob.cpp.
* lang/qt/src/qgpgmequickjob.cpp (class QGpgMEQuickJobPrivate): New.
(QGpgMEQuickJob::QGpgMEQuickJob): Instantiate private job class.
(set_key_enabled): New.
* lang/qt/src/quickjob.cpp: New.
* lang/qt/src/quickjob.h (class QuickJob): Add member function
startSetKeyEnabled.
* lang/qt/src/quickjob_p.h: New.
* lang/qt/tests/Makefile.am: Add new test for Qt 5 and Qt 6.
* lang/qt/tests/t-disablekey.cpp: New.