Fix yarn command in monorepo-scripts

[PaulRBerg]

Description

Don't hate me, this is a very small change, but (1) it was bugging me to know that the command doesn't work and (2) I wanted to go through the contributor guide.

yarn scripts:deps_versions

The solution was to replace scripts with script:

yarn script:deps_versions

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• Prefix PR title with [WIP] if necessary.
• Add tests to cover changes as needed.
• Update documentation as needed.
• Add new entries to the relevant CHANGELOG.jsons.

[fabioberger]

Thanks for the fix @PaulRBerg!