The test always fails when either the Xcb or UNIX, one of the Windows
event dispatchers is used. So only test for the event dispatcher name,
which then covers all platforms, including QNX and INTEGRITY (which
use the UNIX event dispatcher).
Pick-to: 6.3 6.2
Change-Id: I2e315831b53f823c5496ad0319319df78f064cc1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Pasi Petäjäjärvi <pasi.petajajarvi@qt.io>