os-telegraf - Please add OpenTelemetry output

[bmnijhuis]

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• [x] I have read the contributing guide lines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• [x] I have searched the existing issues, open and closed, and I'm convinced that mine is new.
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Is your feature request related to a problem? Please describe. No

Describe the solution you'd like Please add an OpenTelemetry output configuration section to the Telegraf UI.

Describe alternatives you've considered The only alternative I know of is a manual installation and configuration of Telegraf

Additional context The current output configuration in de UI supports InfluxDB, InfluxDB v2, Graphite, Graylog, Elasticsearch, Prometheus, Datadog and MQTT. Telegraf also supports OpenTelemetry (see the docs) It would be nice to be able to configure the OpenTelemetry output through the UI.

[mrpotato3]

+1!