[chore] add @atoulme to release schedule (#4799)

Author: atoulme

RELEASE.md

@@ -55,3 +55,4 @@ The operator should be released within a week after the [OpenTelemetry collector
 | v0.150.0 | @pavolloffay    |
 | v0.151.0 | @swiatekm       |
 | v0.152.0 | @iblancasa      |
+| v0.153.0 | @atoulme        |