Prep for v3-rc.1 release (#4502)

.mailmap

@@ -11,6 +11,7 @@ Andrew Meredith <andymeredith@gmail.com> <kendru@users.noreply.github.com>
 Andrey Smirnov <andrey.smirnov@siderolabs.com>
 Andrii Soldatenko <andrii.soldatenko@gmail.com>
 Andrii Soldatenko <andrii.soldatenko@gmail.com> <andrii.soldatenko@dynatrace.com>
+Ankur Kothiwal <ankur.kothiwal@cern.com>
 Anthony Ramahay <thewolt@gmail.com>
 Antonio Murdaca <antonio.murdaca@gmail.com>
 Antonio Murdaca <antonio.murdaca@gmail.com> <amurdaca@redhat.com>
@@ -24,6 +25,7 @@ Brian Bland <brian.t.bland@gmail.com>
 Brian Bland <brian.t.bland@gmail.com> <brian.bland@docker.com>
 Brian Bland <brian.t.bland@gmail.com> <r4nd0m1n4t0r@gmail.com>
 Chad Faragher <wyckster@hotmail.com>
+Chun-Hung Hsiao <chhsiao@google.com>
 Cory Snider <csnider@mirantis.com>
 CrazyMax <github@crazymax.dev>
 CrazyMax <github@crazymax.dev> <1951866+crazy-max@users.noreply.github.com>
@@ -49,6 +51,7 @@ Eric Yang <windfarer@gmail.com> <Windfarer@users.noreply.github.com>
 Eric Yang <windfarer@gmail.com> <qizhao.yang@daocloud.io>
 Erica Windisch <erica@windisch.us>
 Erica Windisch <erica@windisch.us> <eric@windisch.us>
+Flavian Missi <fmissi@redhat.com>
 Guillaume J. Charmes <charmes.guillaume@gmail.com>
 Guillaume J. Charmes <charmes.guillaume@gmail.com> <guillaume.charmes@dotcloud.com>
 Guillaume J. Charmes <charmes.guillaume@gmail.com> <guillaume@charmes.net>
@@ -58,6 +61,7 @@ Hayley Swimelar <hswimelar@gmail.com>
 Ismail Alidzhikov <i.alidjikov@gmail.com>
 Jaime Martinez <jmartinez@gitlab.com>
 James Hewitt <james.hewitt@uk.ibm.com>
+Jan-Otto Kröpke <github@jkroepke.de>
 Jessica Frazelle <jess@oxide.computer>
 Jessica Frazelle <jess@oxide.computer> <acidburn@docker.com>
 Jessica Frazelle <jess@oxide.computer> <acidburn@google.com>
@@ -78,6 +82,7 @@ Johan Euphrosine <proppy@google.com>
 Johan Euphrosine <proppy@google.com> <proppy@aminche.com>
 John Howard <github@lowenna.com>
 John Howard <github@lowenna.com> <jhoward@microsoft.com>
+Jose D. Gomez R <jose.gomez@suse.com>
 Josh Hawn <jlhawn@berkeley.edu>
 Josh Hawn <jlhawn@berkeley.edu> <josh.hawn@docker.com>
 Joyce Brum <joycebrumu.u@gmail.com>
@@ -98,6 +103,7 @@ Manish Tomar <manish.tomar@docker.com> <manishtomar@users.noreply.github.com>
 Maria Bermudez <bermudez.mt@gmail.com>
 Maria Bermudez <bermudez.mt@gmail.com> <bermudezmt@users.noreply.github.com>
 Markus Thömmes <markusthoemmes@me.com>
+Matheus Macabu <macabu.matheus@gmail.com>
 Matt Linville <matt@linville.me>
 Matt Linville <matt@linville.me> <misty@apache.org>
 Matt Linville <matt@linville.me> <misty@docker.com>
@@ -111,6 +117,7 @@ Michal Minar <miminar@redhat.com> Michal Minář <miminar@redhat.com>
 Mike Brown <brownwm@us.ibm.com>
 Mike Brown <brownwm@us.ibm.com> <mikebrow@users.noreply.github.com>
 Mikel Rychliski <mikel@mikelr.com>
+Mikhail f. Shiryaev <mr.felixoid@gmail.com>
 Milos Gajdos <milosthegajdos@gmail.com>
 Milos Gajdos <milosthegajdos@gmail.com> <1392526+milosgajdos@users.noreply.github.com>
 Milos Gajdos <milosthegajdos@gmail.com> <milosgajdos83@gmail.com>
@@ -130,6 +137,7 @@ Peter Dave Hello <hsu@peterdavehello.org> <PeterDaveHello@users.noreply.github.c
 Phil Estes <estesp@gmail.com>
 Phil Estes <estesp@gmail.com> <estesp@amazon.com>
 Phil Estes <estesp@gmail.com> <estesp@linux.vnet.ibm.com>
+Pratik <pratikgparikh@gmail.com>
 Richard Scothern <richard.scothern@gmail.com>
 Richard Scothern <richard.scothern@gmail.com> <richard.scothern@docker.com>
 Rober Morales-Chaparro <rober.morales@rstor.io>
@@ -154,6 +162,8 @@ Sven Dowideit <SvenDowideit@home.org.au>
 Sven Dowideit <SvenDowideit@home.org.au> <SvenDowideit@users.noreply.github.com>
 Sylvain DESGRAIS <sylvain.desgrais@gmail.com>
 Tadeusz Dudkiewicz <tadeusz.dudkiewicz@rtbhouse.com>
+Thomas Way <thomas@6f.io>
+Tibor <tiborcasteleijn@gmail.com>
 Tibor Vass <teabee89@gmail.com>
 Tibor Vass <teabee89@gmail.com> <tibor@docker.com>
 Tibor Vass <teabee89@gmail.com> <tiborvass@users.noreply.github.com>
@@ -191,4 +201,5 @@ harche <p.harshal@gmail.com>
 harche <p.harshal@gmail.com> <harche@users.noreply.github.com>
 icefed <zlwangel@gmail.com>
 oliver-goetz <o.goetz@sap.com>
+tomoya-kawaguchi <yamo7yamoto@gmail.com>
 xiaoxiangxianzi <zhaoyizheng@outlook.com>