/var/lib/certbot/renew-certificates was previosuly kept up to date, but as of is no longer kept up to date. The script still exists though and may "work" if run, potentially renewing the certificates but based on a older system configuration.
1: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=023c3e0ac44e7fc35eeebc87535a47df2cd01485
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