Update MAINTAINERS.md
The maintainers file had last been updated 2 years ago.
This commit removes all maintainers who have left the team since then,
and adds those we joined in the meantime.
Firecracker is maintained by a dedicated team within Amazon:
-- Adrian Catangiu <acatan@amazon.com>
-- Alexandru Cihodaru <cihodar@amazon.com>
-- Alin Dima <alindima@amazon.com>
-- Andrei Sandu <sandreim@amazon.com>
+- Alexandra Iordache <aghecen@amazon.com>
+- Alexandru-Cezar Sardan <alsardan@amazon.com>
+- Andrei-Cristian Traistaru <atc@amazon.com>
+- Anton Fabian Patras <patrsap@amazon.com>
+- Babis Chalios <bchalios@amazon.com>
- Diana Popa <dpopa@amazon.com>
-- Gabriel Ionescu <gbi@amazon.com>
-- George Pisaltu <gpl@amazon.com>
-- Iulian Barbu <iul@amazon.com>
-- Liviu Berciu <lberciu@amazon.com>
+- Jonathan Woollett-Light <jcawl@amazon.com>
- Luminita Voicu <lumivo@amazon.com>
-- Serban Iorga <seriorga@amazon.com>
+- Marco Cali <xmarcalx@amazon.com>
+- Matthew Schlebush <schlebus@amazon.com>
+- Nikita Kalyazin <kalyazin@amazon.com>
+- Pablo Barbachano <pablob@amazon.com>
+- Patrick Roy <roypat@amazon.com>
+- Takahiro Itazuri <itazur@amazon.com>
+- Vibha Acharya <vibharya@amazon.com>
