Updated mediawiki/extensions
Project: mediawiki/extensions/Configure  ca91d498d58ec848c7a401ea499e943e52b9ea80
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Revert "Revert "Remove everything related to nonexistent $wgExcludeFromThumbnailPurge""

This reverts commit fceeca644000a6cf3484227dc935a02eab51ff06

Setting was actually not included in any release, my mistake