doc(maintainers): sort maintainer list

Sort maintainer list.

Signed-off-by: Nikita Kalyazin <kalyazin@amazon.com>

Author: kalyazin

MAINTAINERS.md

@@ -4,10 +4,10 @@ Firecracker is maintained by a dedicated team within Amazon:
 
 - Babis Chalios <bchalios@amazon.com>
 - Egor Lazarchuk <yegorlz@amazon.co.uk>
+- Jack Thomson <jackabt@amazon.com>
 - Marco Cali <xmarcalx@amazon.com>
 - Nikita Kalyazin <kalyazin@amazon.com>
 - Pablo Barbachano <pablob@amazon.com>
 - Patrick Roy <roypat@amazon.com>
-- Takahiro Itazuri <itazur@amazon.com>
 - Riccardo Mancini <mancio@amazon.com>
-- Jack Thomson <jackabt@amazon.com>
+- Takahiro Itazuri <itazur@amazon.com>