package/python-mwscrape: bump version for python3 support
Upstream ported the package to support python >= 3.6:
https://github.com/itkach/mwscrape/commit/568ccbe6e12dd6391277df02adf724ba0e5f9197
Remove dependency to python-futures package because it was only needed
for python2.
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>