Currently test relies solely for external test server. This makes it
not possible to run test successfully with environment where docker is
used.
Pick-to: 6.2 6.3
Change-Id: Idf7e99c19ab630065b651f2f6d957311f45f0db7
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>