chore: add @trentm to maintainers (open-telemetry#4813)

README.md

@@ -209,6 +209,7 @@ We have a weekly SIG meeting! See the [community page](/~https://github.com/open-t
 - [Chengzhong Wu](/~https://github.com/legendecas), Bloomberg
 - [Daniel Dyla](/~https://github.com/dyladan), Dynatrace
 - [Marc Pichler](/~https://github.com/pichlermarc), Dynatrace
+- [Trent Mick](/~https://github.com/trentm), Elastic
 
 *Find more about the maintainer role in the [community repository](/~https://github.com/open-telemetry/community/blob/main/community-membership.md#maintainer).*
 
@@ -222,7 +223,6 @@ We have a weekly SIG meeting! See the [community page](/~https://github.com/open-t
 - [Neville Wylie](/~https://github.com/MSNev), Microsoft
 - [Purvi Kanal](/~https://github.com/pkanal), Honeycomb
 - [Svetlana Brennan](/~https://github.com/svetlanabrennan), New Relic
-- [Trent Mick](/~https://github.com/trentm), Elastic
 - [David Luna](/~https://github.com/david-luna), Elastic
 
 *Find more about the approver role in the [community repository](/~https://github.com/open-telemetry/community/blob/main/community-membership.md#approver).*