fix(faker): fix Factory type to allow a better management of extensions

[cjimenezsaiz]

Summary

• Bug fix (corrects a fault without impacting current features)

• New feature (adds a new functionality without affecting the existing ones)

• Major change (adds or modifies a feature that impacts existing functionalities)

• Fix faker fatory types

What has changed?

• Fix faker fatory types

Affected Areas

• @mdf.js/faker

Author's Checklist Before Publication

• I have verified that the modification works correctly.
• The modification adheres to the standards set by the Netin Systems DevOps group.
• The modifications do not include keys, tokens, or confidential information in the pipeline.
• Corresponding unit tests have been conducted to cover the new code and/or the tests that are no longer necessary have been removed.