Make sure we push Weblate's Git repo to https://git-tails.immerda.ch/weblate/tails/ once a day

Originally created by @Anonymous on #15651 (Redmine)

I think it would be useful to create a cronjob and push everyday automatically to Weblate’s own repo on immerda.ch.
I’m not sure if this is in place yet.

Parent Task: tails/sysadmin#11759

Related issues

• Related to #15406 (closed)