1.35 of Mediawiki has been release and thus we should release the 1.35 image of Wikibase.
The image was already added in https://github.com/wmde/wikibase-docker/pull/130 so this ticket is only about setting CI to tag the image.
**Acceptance criteria:**
[] the 1.35 (regular and bundle) image is built, tagged, and pushed to docker hub
[] The latest tags now point to the built 1.35 images
[] The README of the wikibase image is correctly updated
**Docs:**
https://github.com/wmde/wikibase-docker/tree/master/wikibase#development
https://github.com/wmde/wikibase-docker#development
**Original request**
> Hello,
>
> I saw that the github repo for wikibase containers:
>
> https://github.com/wmde/wikibase-docker/tree/master/wikibase
>
> contains the version 1.35 for Wikibase. I currently use 1.34 and I would like to upgrade (since I need some features from there).
>
> When will be the corresponding docker pushed to docker hub?
> Is there some documentation for migration?
>
> I saw that a big SQL table was removed and split ... does this affect the migration instructions described here:
>
> https://addshore.com/2019/01/wikibase-docker-mediawiki-wikibase-update/
>
> Especially I'm a bit worried about this part:
>
> "In theory updates to the database, and anything else, will always be backward compatible for at least 1 major version, which is why we can run this update while the site is still being served from Mediawiki 1.30"
>
> Thank you
> D063520