DEVELOPERS: change email for Titouan Christophe

Signed-off-by: Titouan Christophe <titouanchristophe@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

DEVELOPERS

@@ -2612,7 +2612,7 @@ F:	toolchain/
 N:	Timo Ketola <timo.ketola@exertus.fi>
 F:	package/fbgrab/
 
-N:	Titouan Christophe <titouan.christophe@railnova.eu>
+N:	Titouan Christophe <titouanchristophe@gmail.com>
 F:	package/avro-c/
 F:	package/mosquitto/
 F:	package/python-avro/