os-telegraf: add name_prefix in influxdb config

[Matou25]

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Is your feature request related to a problem? Please describe.

i use telegraph to send data to grafana.net influxdb proxy for this purpose, name_prefix help to identify data in grafana. for now i edit config file /usr/local/etc/telegraf.conf and add : name_prefix = "OpnSense_" in [[outputs.influxdb]] section

but every day at midnight this config file is replaced by the datas from opnsense gui which not contain name_prefix.

Describe the solution you'd like

is it possible to addname_prefix field in telegraf output influxdb config ?

Describe alternatives you've considered editing config file /usr/local/etc/telegraf.conf

Additional context OpnSense version : 24.1.10_3 os-telegraf version : 1.12.11 Plugin GUI URL: https://opnsense/ui/telegraf/output/index

[Matou25]

i create a PR for this https://github.com/opnsense/plugins/pull/4198

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