[receiver/splunkenterprise] Adding search artifact size metrics

[chan-ryan]

Component(s)

receiver/splunkenterprise

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

Currently, the Splunk Enterprise Receiver only has count metrics for search artifacts.

Describe the solution you'd like

I would like to add size metrics for search artifacts, which are available using the same /services/server/status/dispatch-artifacts API endpoint in Splunk.

Describe alternatives you've considered

No response

Additional context

No response

[github-actions]

Pinging code owners:

• receiver/splunkenterprise: @shalper2 @MovieStoreGuy @greatestusername

See Adding Labels via Comments if you do not have permissions to add labels yourself.