[WIP] End-to-end refactor

## Background

Given new sdk capabilities we need to refactor `Actors` in the end-to-end tests.

## DoD

New actors:
- Cloud: identus cloud agent (holder, issuer, verifier)
- Holder: edge agent to act as holder
- Issuer: edge agent to act as issuer
- Verifier: edge agent to act as verifier

New abilities:
- CloudAgentAbility
- HolderAbility
- IssuerAbility
- VerifierAbility
- WalletAbility

## Implementation details

- Remove direct accesses from the Steps/Workflows, eg.
- SDK direct access
- URL calls
- All calls should come from Abilities capabilities