Support Neptune DB 1.3.2.0

[michaelnchin]

Community Note

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Is your feature request related to a problem? Please describe.

Neptune DB engine version 1.3.2.0 is generally available as of 6/3: https://docs.aws.amazon.com/neptune/latest/userguide/engine-releases-1.3.2.0.html

This release implements several major changes that may warrant modifications to graph-notebook, including (but not limited to):

• Tinkerpop 3.7.x - Neptune DB now supports TinkerPop versions from 3.6.2 to 3.7.1. The latest version allowed by graph-notebook is 3.6.2, which should be upgraded for parity. Additionally, TinkerPop 3.7 has added, removed, or renamed numerous message serializers, a change which renders invalid several currently permitted inputs to the --profile-serializer argument of %%gremlin profile.
• Query Plan Cache - Neptune DB now supports the openCypher QPC functionality that was previously available only for Neptune Analytics. We should now change %%oc to un-restrict the --plan-cache option for Neptune DB hosts, taking consideration that the QPC implementation is slightly different for DB, which requires passing a query hint instead of an HTTP parameter.