Allow passing `load` keyword argument to generic action code interface

[atkallie]

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Is your feature request related to a problem? Please describe.

Currently, when using a generic action loading things on a resource is only supported by doing something like:

{:ok, resource} = Foo.Bar.some_generic_action(input, actor: actor, tenant: tenant)
resource = Ash.load!(result, [:something], authorize?: false)

CRUD actions support a load keyword argument to be passed to the action.

Describe the solution you'd like

It would be nice to be able to do the following, as is the case for CRUD actions:

{:ok, resource} = Foo.Bar.some_generic_action(input, actor: actor, tenant: tenant, load: [:something])

Describe alternatives you've considered

See above workaround.

Additional context

No response

[zackattackz]

I'd be interested in attempting a PR for this issue if it is free to be assigned?

[zachdaniel]

It's all yours 👌