chore: use modern import of 'neotraverse'

[gameroman]

Description

Replaces neotraverse/legacy import with the modern one

Motivation and Context

How Has This Been Tested?

CI passes

Screenshots (if appropriate):

Types of changes

• No code changes (changes to documentation, CI, metadata, etc)
• Dependency changes (any modification to dependencies in package.json)
• 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.

[robert-hebel-sb]

hey @gameroman 👋
thanks for the PR 🖤

Have you checked locally whether tests were passing?

The modern neotraverse API is ESM-only (ES2022 target), but our Jest config doesn't transform node_modules. This causes SyntaxError: Cannot use import statement outside a module.