Rollup merge of rust-lang#154175 - GuillaumeGomez:mailmap, r=Mark-Simulacrum

Add new alias for Guillaume Gomez email address

I'm switching to a new email account and slowly updating all references to the old one.

Author: JonathanBrouwer

.mailmap

@@ -262,6 +262,7 @@ Guillaume Gomez <guillaume1.gomez@gmail.com>
 Guillaume Gomez <guillaume1.gomez@gmail.com> ggomez <ggomez@ggo.ifr.lan>
 Guillaume Gomez <guillaume1.gomez@gmail.com> Guillaume Gomez <ggomez@ggo.ifr.lan>
 Guillaume Gomez <guillaume1.gomez@gmail.com> Guillaume Gomez <guillaume.gomez@huawei.com>
+Guillaume Gomez <guillaume1.gomez@gmail.com> Guillaume Gomez <contact@guillaume-gomez.fr>
 gnzlbg <gonzalobg88@gmail.com> <gnzlbg@users.noreply.github.com>
 hamidreza kalbasi <hamidrezakalbasi@protonmail.com>
 Hanna Kruppe <hanna.kruppe@gmail.com> <robin.kruppe@gmail.com>