Update running metrics description (#9305)
Update running metrics description (#9305)

* Update running metrics description

* Change wording

Hosts need to be necessarily instrumented with OpenTelemetry, but could be instrumented with Prometheus or other format compatible with a Collector receiver.

* Apply suggestions from code review

Co-authored-by: Julien Lebot <fcb73a6cbc64da19de9efad4b7f4eb7bc963b6ec@datadoghq.com>

Co-authored-by: Julien Lebot <fcb73a6cbc64da19de9efad4b7f4eb7bc963b6ec@datadoghq.com>
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core