`@redocly/config` is missing a license

[CiaranMn]

Is your feature request related to a problem? Please describe.

New internal dependency @redocly/config doesn't have a license set via package.json or a LICENSE(.md) file.

Describe the solution you'd like

An explicit license is set for the package for the avoidance of doubt.

Additional context

This was flagged by dependency license scanning.

[tatomyr]

Thanks for letting us know!