[DE-1090] Support tinkerpop v3.8.0

[rashtao]

Note

Upgrade to TinkerPop 3.8.0, add NotP predicate handling, adjust traversal integration, and update test tooling/images with bytecode target enforcement to JDK 11.

• Core traversal/strategy:
  • ArangoStep now implements HasContainerHolder<S, E>; ArangoStepStrategy updated to collect List<HasContainer> from HasStep before folding into ArangoStep.
• Filtering:
  • Add support for NotP via P name "not" in ArangoFilter.
• Build/Dependencies:
  • Upgrade Apache TinkerPop to 3.8.0 (pom.xml, test plugin gremlin-driver).
  • Update Docker images to gremlin-console:3.8.0 and gremlin-server:3.8.0 in test scripts.
  • Raise enforcer maxJdkVersion for bytecode from 1.8 to 11.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
77.8% Coverage on New Code
0.0% Duplication on New Code

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