Beep boop.
If you update any of the data in secrets, you have to re-tar and gzip it, then gpg encrypt it with:
gpg -c secrets.tar.gz
And add the GPG passphrase to GitHub actions as a repository secret environment
variable $GPG_PASSPHRASE.
Each semester, make sure to update the DATES file to contain a list of dates for the
Galactic Dynamics community meetings.