fix(preprod): Delete EAP data by trace_id instead of attribute

[sentry]

This PR fixes an issue where deleting preprod artifacts would fail with a SnubaRPCError: code: 500.

The root cause was that the Sentry code was attempting to delete preprod data from Snuba's EAP storage by filtering on the preprod_artifact_id attribute. However, Snuba's EAP storage configuration (eap_items.yaml) does not allow attribute-based deletions for the preprod item type, leading to the error: "No attribute-based deletions configured for item_type preprod".

The solution changes the deletion logic in sentry/preprod/helpers/deletion.py to filter by trace_id instead. The trace_id is a standard column in EAP storage and is deterministically generated from the preprod_artifact_id using uuid.uuid5(PREPROD_NAMESPACE, str(artifact_id)).hex in the write path. This ensures that the deletion request uses a supported filter, resolving the SnubaRPCError.

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