fix(config-nx-scopes): restore compatibility with nx 17.2.0 and higher

[mattlewis92]

Description

Updates logic to get nx projects list to use nx helper that works with newer nx versions

Fixes #3820

Motivation and Context

Using with nx 17.2.0 and higher fails with Error: [readCachedProjectGraph] ERROR: No cached ProjectGraph is available.

Usage examples

// commitlint.config.js
module.exports = {extends: ['@commitlint/config-nx-scopes']};

echo "your commit message here" | commitlint # fails/passes

How Has This Been Tested?

Existing tests pass for each nx version

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 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.

[escapedcat]

Thanks!