[BUG] Not compatible with maestro latest version commands

[amir-hamza9d]

Maestro Version
Output of maestro --2.4.0:

OS

• Linux

Describe the bug
its works fine on previous/existing commands but gives error on new commands.
Steps to reproduce

1. Add this command to your test.

 - assertScreenshot:
    path: screen.png 

2. See error

Logs/Output

Validation errors:
  - flows/onboarding/frist-try.yaml: parse error: flows/onboarding/frist-try.yaml:11: unknown step type
Error: validation failed with 1 error(s)```