Add `MarquezClient.getLineage()` to `java` and `py` clients

[wslulciuc]

The java and py clients are missing the method MarquezClient.getLineage(NodeId) to fetch lineage for a given nodeID (though a REST call using curl can be used).

Note: this method will be used only for fetching lineage metadata, to collect lineage metadata please us an OpenLineage client.

[davidjgoss]

Java was done in https://github.com/MarquezProject/marquez/pull/2623, which just leaves Python.

[wslulciuc]

Thanks @davidjgoss for implementing the lineage call for our java client 🙌