Rollup merge of rust-lang#76646 - CDirkx:mailmap, r=Mark-Simulacrum

Add mailmap entry

Author: Dylan-DPC

.mailmap

@@ -55,6 +55,9 @@ Chris C Cerami <chrisccerami@users.noreply.github.com> Chris C Cerami <chrisccer
 Chris Pressey <cpressey@gmail.com>
 Chris Thorn <chris@thorn.co> Chris Thorn <thorn@thoughtbot.com>
 Chris Vittal <christopher.vittal@gmail.com> Christopher Vittal <christopher.vittal@gmail.com>
+Christiaan Dirkx <christiaan@dirkx.email> <christiaan@dirkx.com>
+Christiaan Dirkx <christiaan@dirkx.email> CDirkx <christiaan@dirkx.com>
+Christiaan Dirkx <christiaan@dirkx.email> CDirkx <christiaan@dirkx.email>
 Christian Poveda <git@christianpoveda.xyz> <christianpoveda@protonmail.com>
 Christian Poveda <git@christianpoveda.xyz> <cn.poveda.ruiz@gmail.com>
 Christian Poveda <git@christianpoveda.xyz> <z1mvader@protonmail.com>