deps(python): update torch-geometric requirement from >=2.8.0 to >=2.8.0.post1 in /python

[dependabot]

Updates the requirements on torch-geometric to permit the latest version.

Changelog

Sourced from torch-geometric's changelog.

[2.8.0.post1] - 2026-07-20

Fixed

• Added the missing source distribution to the PyPI release.

[2.8.0] - 2026-06-05

Added

• Added from_relbench to convert RelBench databases into HeteroData (#10628)
• Added a ci: full PR label that triggers the full test suite (pytest-full) on demand instead of the regular one (#10709)
• Added PyTorch 2.11 and 2.12 support (#10708)
• Added txt2qa.py example for synthetic multi-hop QA generation from text documents, supporting vLLM (local) and NVIDIA NIM (API) backends (#10559)
• Added GraphLand benchmark via GraphLandDataset (#10458)

Changed

• Improved runtime of to_dense_batch in both eager and torch.compile (#10660)
• Dropped support for TorchScript in GATConv and GATv2Conv for correctness (#10596)

Deprecated

• Deprecated support for torch-cluster in favor of pyg-lib>=0.6.0 (#10682)
• Deprecated support for torch-spline-conv in favor of pyg-lib>=0.6.0 (#10622)

Removed

• Dropped support for PyTorch 2.8 (#10708)

Fixed

• Fixed dtype mismatch in GRetriever.inference (#10681)
• Fix MovieLens dataset incompatibility with sentence-transformers>=5.0.0 (#10668)
• Removed an unnecessary device synchronization in torch_geometric.utils.softmax (#10499)
• Fixed loading of legacy HuggingFace BERT checkpoints (#10631)
• Fixed return_attention_weights: bool being not respected in GATConv and GATv2Conv (#10596)
• Fixed download links for politifact and gossipcop datasets of UPFD (#10558)

Security

[2.7.0] - 2025-10-14

Added

• Added llm generated explanations to TAGDataset (#9918)
• Added torch_geometric.llm and its examples (#10436)
• Added support for negative weights in sparse_cross_entropy (#10432)
• Added connected_components() method to Data and HeterData (#10388)
• Added LPFormer Graph Transformer for Link Prediction (#9956)

... (truncated)

Commits

• d4e1c45 Prepare for 2.8.0.post1 (#10749)
• See full diff in compare view

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