fix: undefined render args argument

[adesombergh]

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

Since version 4.3.0, args/controls don't work (#373). That's because the argument passed to the render function does not have any args object passed to it (it's always undefined). The args are now available in the storyContext object that is passed to the render function.
This is already used in storybook's latest vue render function

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes (if not applicable, please state why)

[hacknug]

@farnabaz anything we can do to help get this merged?

[farnabaz]

Thank you ❤️

@hacknug I'm going to release a new version today