Ensure metrics are collected in non-interactive environments

[clouvet]

Change Summary

What and Why:

This change fixes metrics not being sent in non-interactive sessions. The previous version of SendMetrics was failing in non-interactive environments because it was using the original context directly with HTTP requests, which could be canceled before metrics were successfully sent, resulting in abandoned requests and lost metrics data.

How:

The fix modifies the metrics system to:

1. Refactor SendMetrics with proper HTTP request handling, error management, and response body cleanup
2. Implement a 15-second timeout mechanism for non-interactive environments
3. Ensure metrics collection failures don't block deployments by only logging warnings
4. Properly establish fallback mechanisms for token authentication, dropping back to the access token or api token depending on availability

This ensures metrics are sent successfully in both interactive and non-interactive modes, with detailed logging for troubleshooting.

Related to:

#2974

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Documentation

• Fresh Produce
• In superfly/docs, or asked for help from docs team
• n/a

[benbjohnson]

lgtm overall, just one comment