Update .mailmap

Author: pvdrz

.mailmap

@@ -56,6 +56,7 @@ Chris Thorn <chris@thorn.co> Chris Thorn <thorn@thoughtbot.com>
 Chris Vittal <christopher.vittal@gmail.com> Christopher Vittal <christopher.vittal@gmail.com>
 Christian Poveda <christianpoveda@protonmail.com> <cn.poveda.ruiz@gmail.com>
 Christian Poveda <christianpoveda@protonmail.com> <z1mvader@protonmail.com>
+Christian Poveda <christianpoveda@protonmail.com> <cpovedar@fnal.gov>
 Clark Gaebel <cg.wowus.cg@gmail.com> <cgaebel@mozilla.com>
 Clinton Ryan <clint.ryan3@gmail.com>
 Corey Richardson <corey@octayn.net> Elaine "See More" Nemo <corey@octayn.net>