[chore] [receiver/mysqlreceiver] Add cjksplunk as code owner (#47869)

## Summary

- Adds `@cjksplunk` to the active code owners for
`receiver/mysqlreceiver` in `metadata.yaml` and `.github/CODEOWNERS`
- Updated `README.md` header via `make generate`

CC @antonblock @ishleenk17

Assisted-by: Claude Sonnet 4.6

Author: cjksplunk

.github/CODEOWNERS

@@ -313,7 +313,7 @@ receiver/macosunifiedloggingreceiver/                            @open-telemetry
 receiver/memcachedreceiver/                                      @open-telemetry/collector-contrib-approvers @jsirianni
 receiver/mongodbatlasreceiver/                                   @open-telemetry/collector-contrib-approvers @justinianvoss22 @dyl10s @ishleenk17
 receiver/mongodbreceiver/                                        @open-telemetry/collector-contrib-approvers @justinianvoss22 @dyl10s @ishleenk17
-receiver/mysqlreceiver/                                          @open-telemetry/collector-contrib-approvers @antonblock @ishleenk17
+receiver/mysqlreceiver/                                          @open-telemetry/collector-contrib-approvers @antonblock @ishleenk17 @cjksplunk
 receiver/namedpipereceiver/                                      @open-telemetry/collector-contrib-approvers @sinkingpoint
 receiver/netflowreceiver/                                        @open-telemetry/collector-contrib-approvers @evan-bradley @dlopes7
 receiver/nginxreceiver/                                          @open-telemetry/collector-contrib-approvers @colelaven @ishleenk17

receiver/mysqlreceiver/README.md

@@ -7,7 +7,7 @@
 | Distributions | [contrib] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Areceiver%2Fmysql%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Areceiver%2Fmysql) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Areceiver%2Fmysql%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Areceiver%2Fmysql) |
 | Code coverage | [![codecov](https://codecov.io/github/open-telemetry/opentelemetry-collector-contrib/graph/main/badge.svg?component=receiver_mysql)](https://app.codecov.io/gh/open-telemetry/opentelemetry-collector-contrib/tree/main/?components%5B0%5D=receiver_mysql&displayType=list) |
-| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@antonblock](https://www.github.com/antonblock), [@ishleenk17](https://www.github.com/ishleenk17) \| Seeking more code owners! |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@antonblock](https://www.github.com/antonblock), [@ishleenk17](https://www.github.com/ishleenk17), [@cjksplunk](https://www.github.com/cjksplunk) \| Seeking more code owners! |
 | Emeritus      | [@djaglowski](https://www.github.com/djaglowski) |
 
 [development]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#development

receiver/mysqlreceiver/metadata.yaml

@@ -8,7 +8,7 @@ status:
     development: [logs]
   distributions: [contrib]
   codeowners:
-    active: [antonblock, ishleenk17]
+    active: [antonblock, ishleenk17, cjksplunk]
     seeking_new: true
     emeritus: [djaglowski]