Expand graph collection and update project tooling

[LeonidLodygin]

Summary

This PR expands and updates the graph collection documentation and refreshes project tooling.

Changes include:

• add new graph groups: Java points-to graphs, Field-Sensitive Alias, Context-Sensitive Data-Flow, Data Provenance, Name Resolution, and UniProt biological graphs
• add individual documentation pages for new graphs with graph statistics, edge statistics, grammars, sources, and download links
• split legacy Old Graphs pages from the updated Graphs pages so they can evolve independently
• add Poetry configuration and lockfile for dependency management
• update CI workflows to use Poetry and Python 3.11
• add Dependabot configuration