Updated mediawiki/extensions
Project: mediawiki/extensions/Thanks  4c88b5973acdbef6ca3085d10647d2b486a330c8

Remove the deprecated user preference: 'vector-noexperiments'

In addition, Thanks is not an experimental feature anymore

bug: 54852

Change-Id: I10b63c3e5f659c06e72f7e9f925c1044eb1986ac