feat: add argilla script

[gabrielmbmb]

Description

This PR adds an script called argilla to the package that allows to execute the Argilla CLI without the need of python -m argilla (argilla --help).

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested

• pip install -e. (to reinstall the package)
• argilla --help worked

Checklist

• I added relevant documentation
• I followed the style guidelines of this project
• I did a self-review of my code
• I made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I filled out the contributor form (see text above)
• I have added relevant notes to the CHANGELOG.md file (See https://keepachangelog.com/)

[codecov]

Codecov Report

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[github-actions]

The URL of the deployed environment for this PR is https://argilla-quickstart-pr-3730-ki24f765kq-no.a.run.app