drop extra prometheus metadata metrics for container insights

[movence]

Description of the issue

Agent is pushing incomplete EMF log entries from prometheus receiver. These entries only contain prometheus metadata metrics:

• up
• scrape_duration_seconds
• scrape_samples_scraped
• scrape_series_added
• scrape_samples_post_metric_relabeling

Description of changes

• Add filterprocessor to containerinsights pipeline
• Add metric filtering rules for those metadata
• Update filter processor translator to handle containerinsights pipeline correctly since it was originally intended for only JMX

Rev 1

• move kueue pipeline name const to common package
• update tests

License

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Tests

Verified those metadata stopped getting pushed to CloudWatch using LogInsights query:

fields @timestamp, @message
| filter @message like 'scrape_samples_post_metric_relabeling'
| sort @timestamp desc

Passing integ test for emf-logs https://github.com/aws/amazon-cloudwatch-agent/actions/runs/13404682400/job/37442422498

Requirements

Before commit the code, please do the following steps.

1. Run make fmt and make fmt-sh
2. Run make lint