Important

Updated documentation to mark /api/public/ingestion as a legacy endpoint and direct users to the OpenTelemetry endpoint.

• Documentation Updates:
  • Marked /api/public/ingestion as a legacy endpoint in ingestion.yml, openapi.yml, and collection.json.
  • Added a note to use the OpenTelemetry endpoint /api/public/otel instead, with a link to more information.

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