Updated mediawiki/extensions
Project: mediawiki/extensions/GlobalUsage  29488b6f6099504ccf9f35bac5c9a47b5ddab000

Change globalusage API cache mode to public

There does not seem to be any reason to keep this private.

Change-Id: I30c8e3992c05612c5f604c4f4847ce57e6a247e9