requirements: bump pytest and add pytest-timeout
requirements: bump pytest and add pytest-timeout

Our buildfarm needs pytest-timeout and install qibuild deps,
specifying a fixed revision here prevents us from having issues

Change-Id: Id3ace26a9c776cf4023bddd793860ad64b976b8f
Reviewed-on: http://gerrit.aldebaran.lan/64849
Tested-by: gerrit
Reviewed-by: vbarbaresi <371b46c96c99af52f4f920034e4fcb63ece5bdb5@aldebaran-robotics.com>

aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild