feat: Add a new key in the root of the config file for services

[joel5vega]

Pull Request description

How to test these changes

sugar build --verbose --config-file tests/containers/.services.sugar.yaml

• ...

Pull Request checklists

This PR is a:

• [ ] bug-fix
• [X] new feature
• [ ] maintenance

About this PR:

• [X] it includes tests.
• [X] the tests are executed on CI.
• [ ] the tests generate log file(s) (path).
• [ ] pre-commit hooks were executed locally.
• [ ] this PR requires a project documentation update.

Author's checklist:

• [X] I have reviewed the changes and it contains no misspelling.
• [X] The code is well commented, especially in the parts that contain more complexity.
• [X] New and old tests passed locally.

Additional information

Reviewer's checklist

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## Reviewer's Checklist

- [ ] I managed to reproduce the problem locally from the `main` branch
- [ ] I managed to test the new changes locally
- [ ] I confirm that the issues mentioned were fixed/resolved .

[xmnlab]

@joel5vega please rebase your branch on top of the upstream main.

now sugar.py was renamed to core.py

[joel5vega]

@xmnlab can you check if newest push solve the problem?

[xmnlab]

It still has merge conflicts

[github-actions[bot]]

:tada: This PR is included in version 1.10.0 :tada:

The release is available on:

• 1.10.0
• GitHub release

Your semantic-release bot :package::rocket: