Propose @MovieStoreGuy as maintainer (open-telemetry#23608)

**Description:** 

Propose @MovieStoreGuy on behalf of the OpenTelemetry Collector Contrib
maintainers.

cc @open-telemetry/collector-contrib-approvers

.github/auto_assign.yml

@@ -16,14 +16,14 @@ assigneeGroups:
     # - dashpole is out on leave
     - fatsheep9146
     - kovrus
-    - MovieStoreGuy
     # Maintainers
     - bogdandrutu
     - codeboten
     - djaglowski
     - dmitryax
     - evan-bradley
     - jpkrohling
+    - MovieStoreGuy
     - mx-psi
     - TylerHelmuth
 

README.md

@@ -95,7 +95,6 @@ Approvers ([@open-telemetry/collector-contrib-approvers](https://github.com/orgs
 - [Antoine Toulme](https://github.com/atoulme), Splunk
 - [David Ashpole](https://github.com/dashpole), Google
 - [Ruslan Kovalov](https://github.com/kovrus), Grafana Labs
-- [Sean Marciniak](https://github.com/MovieStoreGuy), Atlassian
 - [Yang Song](https://github.com/songy23), DataDog
 - [Ziqi Zhao](https://github.com/fatsheep9146), Alibaba
 
@@ -112,6 +111,7 @@ Maintainers ([@open-telemetry/collector-contrib-maintainer](https://github.com/o
 - [Evan Bradley](https://github.com/evan-bradley), Dynatrace
 - [Juraci Paixão Kröhling](https://github.com/jpkrohling), Grafana Labs
 - [Pablo Baeyens](https://github.com/mx-psi), DataDog
+- [Sean Marciniak](https://github.com/MovieStoreGuy), Atlassian
 - [Tyler Helmuth](https://github.com/TylerHelmuth), Honeycomb
 
 Emeritus Maintainers