Use the new poetry dev dependency group

[matheusfelipeog]

The *.dev-dependencies section and the --dev flag of the poetry add command are deprecated. You will receive if you run:

❯ poetry add --dev foo-pkg
The --dev option is deprecated, use the `--group dev` notation instead.

Instead, use groups (*.group.dev.dependencies):

❯ poetry add foo-pkg --group dev

---

refs:

• https://python-poetry.org/docs/cli/#options-4
• https://python-poetry.org/docs/managing-dependencies/#dependency-groups

[Dr-Irv]

Since poetry changed things, it would be best if you updated line 4 of docs/setup.md to indicate the minimal version of poetry required to use the group syntax. That will help anybody (like myself) who has an older version installed, since I don't think there is a way to specify a poetry version in the pyproject.toml file (but maybe there is??)

[matheusfelipeog]

@Dr-Irv You're right, it's better to specify the version. I saw there is a discussion about this in python-poetry/poetry#3316, but there isn't currently a way to define it within the pyproject.toml file.

For now, we can specify it in the docs/setup.md file, as you suggested.

[matheusfelipeog]

Done 😄

[Dr-Irv]

Thanks @matheusfelipeog