fix: prepare script

[inigomarquinez]

Description

• fix prepare script to avoid it failing when husky is not present

Related Issue

#5

Motivation and Context

CI was failing because husky is a dev dependency and running prepare script fails only with production dependencies

https://typicode.github.io/husky/guide.html#with-a-custom-script

How Has This Been Tested?

No tests needed

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.