v8.0.4: New tuplify and resizable layers, and some bug fixes

✨ New features and improvements

• Add tuplify layer.
• More generic implementation of the concatenate layer.
• Add resizable layer.
• Introduce force parameter for model.set_dim().
• Improve UX when setting the GPU allocator.

🔴 Bug fixes

• Fix issue #492: Fix backpropagation in with_getitem.
• Fix issue #494: Resolve forward refs issue with Pydantic.
• Fix issue #496: Avoid Pydantic versions with security vulnerabilities.

👥 Contributors

@adrianeboyd, @honnibal, @ines, @Kludex, @polm, @svlandeg, @thomashacker