👷 Improve checkTelemetryErrors: exclude deprecated datacenters and add detailed logging

[BenoitZugmeyer]

Motivation

When running the post-deploy telemetry error check, deprecated datacenters were included in the check, causing unnecessary noise or failures for sites that are no longer active. Additionally, when a check failed or was skipped, the error messages lacked enough context (site name, event counts, thresholds) to quickly diagnose the issue.

Changes

• Exclude deprecated datacenters from the runtime metadata selector used in the deploy check
• Add detailed per-site logging to checkTelemetryErrors: log the datacenter list being checked, event counts vs. thresholds per query, and include site/query context in all error messages
• Wrap network errors in structured Error objects with site and attempt context for clearer stack traces

Test instructions

Deploy a version and observe the telemetry check output — it should now log the list of datacenters being checked, and for each site/query pair, print the event count alongside the threshold.

Checklist

• Tested locally
• Tested on staging
• Added unit tests for this change.
• Added e2e/integration tests for this change.
• Updated documentation and/or relevant AGENTS.md file

[datadog-prod-us1-6]

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 76.81% (+0.01%)

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🔗 Commit SHA: c3fa190 | Docs | Datadog PR Page | Give us feedback!}

[cit-pr-commenter-54b7da]

Bundles Sizes Evolution

📦 Bundle Name	Base Size	Local Size	𝚫	𝚫%	Status
Rum	172.04 KiB	172.04 KiB	0 B	0.00%	✅
Rum Profiler	7.88 KiB	7.88 KiB	0 B	0.00%	✅
Rum Recorder	21.09 KiB	21.09 KiB	0 B	0.00%	✅
Logs	54.64 KiB	54.64 KiB	0 B	0.00%	✅
Rum Slim	129.72 KiB	129.72 KiB	0 B	0.00%	✅
Worker	22.96 KiB	22.96 KiB	0 B	0.00%	✅

[chatgpt-codex-connector]

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