chore: Add the steps property

[blendthink]

Description

This pull request addresses an issue in the official Melos schema configuration for the melos.yaml file. Specifically, it adds the missing schema definition for the steps field.

Problem

The current official schema lacks the definition for the steps field in melos.yaml. This omission causes validation errors when users attempt to use the steps field in their melos.yaml files.

Solution

Add the steps property to the script definition in the $defs.script section of melos.yaml.schema.json.

Validation

The changes have been validated in the repository at https://github.com/blendthink/melos-yaml-scheme.

Type of Change

• ✨ feat -- New feature (non-breaking change which adds functionality)
• 🛠️ fix -- Bug fix (non-breaking change which fixes an issue)
• ❌ ! -- Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 refactor -- Code refactor
• ✅ ci -- Build configuration change
• 📝 docs -- Documentation
• 🗑️ chore -- Chore

[docs-page]

To view this pull requests documentation preview, visit the following URL:

docs.page/invertase/melos~781

Documentation is deployed and generated using docs.page.

[CLAassistant]

All committers have signed the CLA.

[spydon]

Lgtm, thanks for your contribution! :)

[blendthink]

@spydon
I submitted a pull request, but some of the CI checks failed.
https://github.com/invertase/melos/actions/runs/11529828753/job/32099370944

It seems that this issue has occurred before as well, and it appears to be a randomly occurring problem.
https://github.com/invertase/melos/actions/runs/11222568392/job/31195282729

I attempted to rerun the CI by creating and pushing an empty commit, but I forgot that it requires maintainer approval.
I apologize for the inconvenience, but could you please help by rerunning the CI?

[blendthink]

Thank you for rerunning the CI!