tst_QDateTime and tst_qqmlqt::timeRoundtrip fail on macOS 10.13 and macOS 10.14

 agent:2021/03/25 10:01:00 build.go:379: FAIL!  : tst_QDateTime::operator_insert_extract(v1 WA => WA Tue Aug 14 08:00:00 2012) Compared values are not the same
agent:2021/03/25 10:01:00 build.go:379:    Actual   (localDeserialized): 2012/08/14 08:00:00.000[AWST]
agent:2021/03/25 10:01:00 build.go:379:    Expected (dateTime)         : 2012/08/14 08:00:00.000[AWST]
agent:2021/03/25 10:01:00 build.go:379:    Loc: [tst_qdatetime.cpp(2138)]

agent:2021/03/25 09:58:10 build.go:379: FAIL!  : tst_qqmlqt::timeRoundtrip(localtime) Compared values are not the same
agent:2021/03/25 09:58:10 build.go:379:    Actual   (tp.m_getTime): 00:00:00.000
agent:2021/03/25 09:58:10 build.go:379:    Expected (tp.m_putTime): 22:00:00.000
agent:2021/03/25 09:58:10 build.go:379:    Loc: [tst_qqmlqt.cpp(1298)]