feat(version): allow passing multiple npmClientArgs as CSV

[ghiscoding]

Description

Allow passing multiple npmClientArgs to lerna version, for example

lerna version 3.3.3 --sync-workspace-lock --npm-client-args="--legacy-peer-deps,--force"

Motivation and Context

Keep in sync with Lerna and follow extra commits in Lerna PR 3434

How Has This Been Tested?

added necessary unit tests

Types of changes

• Chore (change that has absolutely no effect on users)
• 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 added tests to cover my changes.
• All new and existing tests passed.