Had to use `tools/telemetry` to smoke test
https://github.com/fleetdm/fleet/pull/49957.
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## Summary by CodeRabbit
* **Enhancements**
* Updated telemetry collection to use the standard OpenTelemetry
Collector image.
* Improved trace forwarding to Jaeger and added clearer diagnostic
output.
* Reworked span-to-metrics processing for more reliable telemetry
metrics.
* Updated telemetry endpoints and pipeline routing for improved
connectivity.
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Lucas Manuel Rodriguez