AUTHORS: Run update-copyright.py

Update in the list of contributors from the Git history.

.mailmap

 Andy Boughton <abought@gmail.com> <pchemist@gmail.com>
 Greg Wilson <gvwilson@software-carpentry.org> <gvwilson@third-bit.com>
+Abigail Cabunoc <abigail.cabunoc@oicr.on.ca> <abigail.cabunoc@gmail.com>
+Francois Michonneau <francois.michonneau@gmail.com> <francois.michonneau@gmail.Com>
+Raniere Silva <raniere@ime.unicamp.br> <ra092767@ime.unicamp.br>

AUTHORS

 lesson-template was written by:
 Aaron O'Leary <aaron.oleary@gmail.com>
+Abigail Cabunoc <abigail.cabunoc@oicr.on.ca>
 Andy Boughton <abought@gmail.com>
 Bill Mills <mills.wj@gmail.com>
+Francois Michonneau <francois.michonneau@gmail.com>
 Greg Wilson <gvwilson@software-carpentry.org>
 James Allen <jamesallen0108@gmail.com>
 John Blischak <jdblischak@gmail.com>
+Jon Pipitone <jon.pipitone@utoronto.ca>
+Michael Hansen <hansen.mike@gmail.com>
+Piotr Banaszkiewicz <piotr@banaszkiewicz.org>
 Raniere Silva <raniere@ime.unicamp.br>
 Rémi Emonet <remi.emonet@reverse--com.heeere>
 Timothée Poisot <tim@poisotlab.io>