tests: fix urihandlertest on windows
tests: fix urihandlertest on windows

freedesktop-unofficial-mirror/gstreamer__qt-gstreamer,GStreamer/qt-gstreamer,knuesel/qt-gstreamer,iperry/qt-gstreamer,dejunk/gstreamer,tswindell/qt-gstreamer,detrout/qt-gstreamer,iperry/qt-gstreamer,knuesel/qt-gstreamer,detrout/qt-gstreamer,freedesktop-unofficial-mirror/gstreamer__qt-gstreamer,iperry/qt-gstreamer,dejunk/gstreamer,GStreamer/qt-gstreamer,GStreamer/qt-gstreamer,nasserGanjali/QtGStreamer,tswindell/qt-gstreamer,knuesel/qt-gstreamer,freedesktop-unofficial-mirror/gstreamer__qt-gstreamer,nasserGanjali/QtGStreamer,nasserGanjali/QtGStreamer,tswindell/qt-gstreamer,dejunk/gstreamer,detrout/qt-gstreamer