MNT: Update mailmap

Author: effigies

.mailmap

@@ -30,6 +30,7 @@ Dimitri Papadopoulos Orfanos <dimitri.papadopoulos@cea.fr> <DimitriPapadopoulos@
 Dimitri Papadopoulos Orfanos <dimitri.papadopoulos@cea.fr> <3234522+DimitriPapadopoulos@users.noreply.github.com>
 Eric Larson <larson.eric.d@gmail.com> Eric89GXL <larson.eric.d@gmail.com>
 Eric Larson <larson.eric.d@gmail.com> larsoner <larson.eric.d@gmail.com>
+Fabian Perez <Factral@users.noreply.github.com>
 Fernando Pérez-García <fepegar@gmail.com> Fernando <fepegar@gmail.com>
 Félix C. Morency <felix.morency@gmail.com> Felix C. Morency <felix.c.morency@usherbrooke.ca>
 Félix C. Morency <felix.morency@gmail.com> Félix C. Morency <felix.c.morency@usherbrooke.ca>