v0.4.3rc0

What's Changed

• Updating minor after release 0.4.2 by @Narsil in #433
• Adding support for integer indexing [0, :2, -1]. by @Narsil in #440
• Updating doc. by @Narsil in #465
• Add support for device in safetensors.torch.load_model by @Wauplin in #449
• Upgrading pyo3 to 0.21. by @Narsil in #468

Full Changelog: v0.4.2...v0.4.3rc0