Python Workflows API improvements

[Caio-Nogueira]

This PR includes breaking changes on the step API. Workflows are still experimental and under active development

• bugfix step.do to await for Js promise rejection
• new error translation layer between Python exceptions and Js errors (for now custom exceptions won't be catchable)
• new DAG optional params - users are now able to define a list of dependencies (other steps they depend on) and have them be executed (in parallel or sequentially). See this diff
• removes the option to call a step with a callable as the second param - makes the API more uniform
• adds coverage for these additions in the existing test

[dom96]

Left some suggestions/comments, but overall looks good

[Talador12]

Do you have any auto linting going into each of these PRs? I do not think it's the scope of this PR to solve it, but I think it would be good to format these with Black, Ruff (Flake8)

Sometimes you see things like this all in one project:

black
pyright
isort
ssort
darglint
pydocstyle
ruff

[Caio-Nogueira]

Do you have any auto linting going into each of these PRs? I do not think it's the scope of this PR to solve it, but I think it would be good to format these with Black, Ruff (Flake8)

Sometimes you see things like this all in one project:

black
pyright
isort
ssort
darglint
pydocstyle
ruff

We use the ruff linter/formatter