Fetches a specific device group from ExtraHop using its group ID.

Target: ExtraHop integration target or HTTP Endpoint for "your-tenant.api.cloud.extrahop.com" with a path of "/api/v1"

Account Key: None if using an integration-provided target, access token if using an HTTP Endpoint target

Steps:
[] Build the authorization header
[] Fetch the device group
[] Check if the request was successful:
[]> If it was, set the output variables
[]> If it wasn't, output an error

More information about this API: https://docs.extrahop.com/current/rx360-rest-api/#device-group

ExtraHop Reveal(x) 360 - Get Device Group by ID