[BUG] Node2Vec Tests are not completely deterministic

[Dax Pryce]

Expected Behavior

Unit tests should work consistently

Actual Behavior

Unit tests often fail in CI because the tests:

• test_n2v_returns_same_labels_with_different_nodeid_types
• test_n2v_directed_undirected_returns_same_clustering
  Are not deterministic.

These tests are commented out but should be properly fixed to guarantee consistent behavior regardless of when we run.