feat: add alertSettings.parallelRunFailureTreshold to CLI [sc-19200]

[maxigimenez]

I hereby confirm that I followed the code guidelines found at engineering guidelines

Affected Components

• CLI
• Create CLI
• Test
• Docs
• Examples
• Other

Notes for the Reviewer

Add new alert settings options:

alertEscalationPolicy: {
    parallelRunFailureThreshold: {
      enabled: true,
      percentage: 100,
    }
  }

[shortcut-integration]

This pull request has been linked to Shortcut Story #19200: Add alertSetting.parallelRunFailureThreshold support to CLI/TF.

[Antoine-C]

Do we want them to be optional?

[shiini2]

If they're missing the BE schema should apply default values

[maxigimenez]

That should be the case yes, it fallback always to the schema defaults

[maxigimenez]

I've follow the same pattern as the other alertSettings props in this file

[Antoine-C]

Gotcha, it's weird the enabled is optional and defaults to something though but anyway LGTM

[Antoine-C]

Gotcha, it's weird the enabled is optional and defaults to something though but anyway LGTM