Add inputs properties for each input in composite action

**Is your feature request related to a problem? Please describe.**
Yes, when querying composite actions, I would like to filter to inputs with a specific value. We don't have that information right now.

**Describe the solution you'd like**
I would like each input will have additional details about him. Right now, the `CompositeAction` Node has a property of inputs, which is a list of inputs. I would like each input will have additional values, such as default value.

**Describe alternatives you've considered**
No alternatives in Raven for now.

**Additional context**
CompositeAction Node right now:


CompositeAction additional details:
In this case, I would like a way to filter for the `CompositeAction` Node that contains input with a default value of `${{ github.token }}`