[chore] add atoulme as codeowner for jmxreceiver (open-telemetry#37296)

Proposing to take the position of codeowner of jmxreceiver. Moving this
component out of unmaintained status.

Author: atoulme

.github/ALLOWLIST

@@ -28,4 +28,3 @@ exporter/kineticaexporter/
 exporter/opensearchexporter/
 extension/observer/ecstaskobserver/
 extension/storage/filestorage/
-receiver/jmxreceiver/

.github/CODEOWNERS

@@ -248,6 +248,7 @@ receiver/huaweicloudcesreceiver/                                 @open-telemetry
 receiver/iisreceiver/                                            @open-telemetry/collector-contrib-approvers @Mrod1598 @pjanotti
 receiver/influxdbreceiver/                                       @open-telemetry/collector-contrib-approvers @jacobmarble
 receiver/jaegerreceiver/                                         @open-telemetry/collector-contrib-approvers @yurishkuro
+receiver/jmxreceiver/                                            @open-telemetry/collector-contrib-approvers @atoulme
 receiver/journaldreceiver/                                       @open-telemetry/collector-contrib-approvers @sumo-drosiek @djaglowski
 receiver/k8sclusterreceiver/                                     @open-telemetry/collector-contrib-approvers @dmitryax @TylerHelmuth @povilasv @ChrsMark
 receiver/k8seventsreceiver/                                      @open-telemetry/collector-contrib-approvers @dmitryax @TylerHelmuth @ChrsMark
@@ -328,4 +329,3 @@ exporter/kineticaexporter/                                       @open-telemetry
 exporter/opensearchexporter/                                     @open-telemetry/collector-contrib-approvers 
 extension/observer/ecstaskobserver/                              @open-telemetry/collector-contrib-approvers 
 extension/storage/filestorage/                                   @open-telemetry/collector-contrib-approvers 
-receiver/jmxreceiver/                                            @open-telemetry/collector-contrib-approvers 

receiver/jmxreceiver/README.md

@@ -3,13 +3,13 @@
 <!-- status autogenerated section -->
 | Status        |           |
 | ------------- |-----------|
-| Stability     | [unmaintained]: metrics   |
+| Stability     | [beta]: metrics   |
 | Distributions | [contrib] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Areceiver%2Fjmx%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Areceiver%2Fjmx) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Areceiver%2Fjmx%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Areceiver%2Fjmx) |
-| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    |  |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@atoulme](https://www.github.com/atoulme) |
 | Emeritus      | [@rmfitzpatrick](https://www.github.com/rmfitzpatrick) |
 
-[unmaintained]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#unmaintained
+[beta]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#beta
 [contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib
 <!-- end autogenerated section -->
 

receiver/jmxreceiver/internal/metadata/generated_status.go

@@ -3,10 +3,10 @@ type: jmx
 status:
   class: receiver
   stability:
-    unmaintained: [metrics]
+    beta: [metrics]
   distributions: [contrib]
   codeowners:
-    active: []
+    active: [atoulme]
     emeritus: [rmfitzpatrick]
 
 tests: