v0.12.1 - Granite 4 support, and adding extended env var and torchrun arg support

What's Changed

• Update requirements-cuda.txt to increase liger-kernel minimum by @Maxusmusti in #659
• Adds mamba-ssm[causal-conv1d] to CUDA requirements by @RobotSail in #663
• Removes Numpy version cap by @RobotSail in #664
• fix(torchrun): Omit empty arguments and correct nproc_per_node type by @szaher in #661

New Contributors

• @szaher made their first contribution in #661

Full Changelog: v0.12.0...v0.12.1