OTEL spans for Hive Traces should include `hive.kind` attribute

[dotansimha]

Hive Console ingestor process traces better when hive.kind attribute is set on the traces. Hive Router sends it, but Gateway doesn't.

Specification: https://www.notion.so/theguildoss/Tracing-2ceb6b71848a80779e94e7514284b2f4?source=copy_link