Bump version to 4.3.1 for pypi

Bump version to 4.2.1

Merge pull request #22 from groq/release/4_2_0

GroqFlow release 4.2.0

Merge pull request #16 from settle/patch-1

Hotfix: Add onnx opset to groqflow config

Merge pull request #14 from groq/release/0921

Release groqflow for SDK >= 0.9.2.1

First push to PyPI proper

Add workflows