Automate running ./update-mirrors.pl in the website builder
Right now we need to run ./update-mirrors.pl manually to build the list of which mirrors we should list on https://www.torproject.org/getinvolved/mirrors
But actually, this seems like totally the sort of thing that should be run daily in an automated way by our new website auto builder.
weasel points us to these two links: https://gitweb.torproject.org/project/jenkins/jobs.git/blob/HEAD:/jobs.yaml#l1298 https://gitweb.torproject.org/project/jenkins/tools.git/tree/HEAD:/slaves/linux/website-build-blog-snippets for how the website auto generates the blog content for the frontpage before building.
We should extend those two scripts to auto generate the mirror content once a day too.