Previous release work: T240392: Release MediaWiki 1.31.7/1.33.3/1.34.1
Tracking for activities actually pertaining to making the release of MediaWiki 1.31.8/1.33.4/1.34.2
This will be the last (and therefore the EOL-ing) release for 1.33 as per https://www.mediawiki.org/wiki/Version_lifecycle