doc: update .mailmap for mmarchini

PR-URL: #34586
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

.mailmap

@@ -248,10 +248,11 @@ Marti Martz <thalamew@q.com>
 Martial James Jefferson <martial.jefferson@gmail.com>
 Martijn Schrage <martijn@oblomov.com> Oblosys <martijn@oblomov.com>
 Masato Ohba <over.rye@gmail.com>
-Matheus Marchini <mat@mmarchini.me> <matheusdot@gmail.com>
-Matheus Marchini <mat@mmarchini.me> <matheus@sthima.com.br>
-Matheus Marchini <mat@mmarchini.me> <matheus@sthima.com>
-Matheus Marchini <mat@mmarchini.me> <mmarchini@netflix.com>
+Mary Marchini <oss@mmarchini.me> <matheusdot@gmail.com>
+Mary Marchini <oss@mmarchini.me> <matheus@sthima.com.br>
+Mary Marchini <oss@mmarchini.me> <matheus@sthima.com>
+Mary Marchini <oss@mmarchini.me> <mmarchini@netflix.com>
+Mary Marchini <oss@mmarchini.me> <mat@mmarchini.me>
 Matt Lang <matt@mediasuite.co.nz> matt-in-a-hat <matt@mediasuite.co.nz>
 Matt Reed <matthewreed26@gmail.com> matthewreed26 <matthewreed26@gmail.com>
 Matteo Collina <matteo.collina@gmail.com> <hello@matteocollina.com>