Make some extension jobs voting

The following jobs are now voting since their test suite got fixed
somehow:

mwext-cldr-testextensions-master
mwext-ContributionTracking-testextensions-master
mwext-GeoData-testextensions-master
mwext-GWToolset-testextensions-master
mwext-LabeledSectionTransclusion-testextensions-master/

Change-Id: I9cde6f9ecd5e1a35c795fec393477557045d53ae