meta: add mailmap entry for dnlup

This updates dnlup's name to their preferred email per their last pull
request.

This will also prevent duplicate entries for dnlup when the
update-authors job runs.

It also moves one unrelated line in .mailmap so that all lines are
sorted in lexical order.

.mailmap

@@ -137,6 +137,7 @@ David Mark Clements <david.clements@nearform.com> <huperekchuno@googlemail.com>
 David Siegel <david@artcom.de> <david.siegel@artcom.de>
 DC <dcposch@dcpos.ch>
 Deepjyoti Mondal <djmdeveloper060796@gmail.com>
+dnlup <dnlup.dev@gmail.com> <dwon.dnl@gmail.com>
 Domenic Denicola <domenic@domenicdenicola.com>
 Domenic Denicola <domenic@domenicdenicola.com> <d@domenic.me>
 Doug Wade <doug@dougwade.io> <doug.wade@redfin.com>
@@ -200,7 +201,6 @@ Hannes Magnusson <hannes.magnusson@gmail.com> <hannes.magnusson@creditkarma.com>
 Hassaan Pasha <pasha.hassaan@gmail.com> <hassaan.pasha@teamo.io>
 Hendrik Schwalm <mail@hendrikschwalm.de>
 Henry Chin <hheennrryy@gmail.com>
-Nick Sia <nicholas.sia@vgw.co> <31839263+nicksia-vgw@users.noreply.github.com>
 Herbert Vojčík <herby@mailbox.sk>
 Hitesh Kanwathirtha <hiteshk@microsoft.com> <digitalinfinity@gmail.com>
 Icer Liang <liangshuangde@163.com> <wizicer@users.noreply.github.com>
@@ -374,6 +374,7 @@ Nam Nguyen <nam.nguyen@de.ibm.com>
 Nebu Pookins <nebu@nebupookins.net>
 Netto Farah <nettofarah@gmail.com>
 Nicholas Kinsey <pyrotechnick@feistystudios.com>
+Nick Sia <nicholas.sia@vgw.co> <31839263+nicksia-vgw@users.noreply.github.com>
 Nick Soggin <nicksoggin@gmail.com> <iSkore@users.noreply.github.com>
 Nigel Kibodeaux <nigelmail@gmail.com> <nigel@team.about.me>
 Nikola Glavina <glavina.nikola5@gmail.com> <nikola.glavina@student.um.si>

AUTHORS

@@ -2694,7 +2694,7 @@ Yann Hamon <yann.hamon@contentful.com>
 Ben Swinburne <ben.swinburne@gmail.com>
 Colin Prince <col@colinprince.com>
 TJKoury <TJKoury@gmail.com>
-dnlup <dwon.dnl@gmail.com>
+dnlup <dnlup.dev@gmail.com>
 Hang Jiang <jianghangscu@gmail.com>
 Vladislav Kaminsky <wlodzislav@outlook.com>
 Daiki Ihara <sasurau4@gmail.com>