All servers/installers: Update Let’s Encrypt cron scripts to remove .sh suffix from file name in cron.weekly
Believe it or not (believe it), weekly/hourly/etc. cron scripts will not be executed and will fail silently if put in, cron.hourly, cron.weekly, etc.
See https://bugs.launchpad.net/ubuntu/+source/debianutils/+bug/38022
This is why our Let’s Encrypt certificates were not automatically renewing themselves.