Having this file is still useful to allow installing *only* dev requirements
(e.g. in CI) with:
pip install -r requirements.dev.txt
Generate that file automatically from the pyproject.toml based on:
e7c6baf00f/tools/generate_requirements.py
* Update requirements
* Update CI for p3.10
* Update numpy requirement
* Drop 🐍p3.6 support
Numpy also dropped support for p3.6
* Bind cython v0.29.28
* Bind pyworld to v0.2.10
> 0.2.10 is not p3.10.x compatible
* Update Dockerfile