feat(publish-metrics): implement tracing for the cloudwatch reporter

[InesNi]

Description

Implementing tracing support for the Cloudwatch reporter. The reporter will use OpenTelemetry reporter in the background for tracing, and traces will be exported to AWS X-Ray.

Configuration

Cloudwatch agent (or ADOT) installation is required for local runs, but for Fargate runs the ADOT sidecar will be dynamically configured to send traces to AWS X-Ray.

  plugins:
    publish-metrics:
      - type: cloudwatch
        sendOnlyTraces: true
        traces: 
          sampleRate: 0.5
          useRequestNames: true
          annotations:
            tool: "artillery"

Testing

Unit tests added on publish-metrics side and an e2e test added on the cli side

Notes

• Important: Users that wish to use this feature with Fargate runs and had already ran Artillery tests on Fargate in the past will need to delete the 'artilleryio-ecs-worker-role' IAM role and the 'artilleryio-ecs-worker-policy' IAM policy from their account prior to running tests in order for this feature to work. This is needed because the role will have to be recreated with the necessary permissions to send traces to AWS X-Ray

• This is a new clean branch for feat(publish-metrics): implement tracing support for cloudwatch reporter #2487

Pre-merge checklist

• Does this require an update to the docs?
• Does this require a changelog entry?