Is your feature request related to a problem?

Upgrade to lerna@7 by either using NPM workspaces or remove Lerna altogether.

Describe the suggestion or request in detail

lerna@7 removed lerna add and bunches of monorepo related features in favor of NPM workspaces.

Describe alternatives you have considered

No response

Additional context

While working on this one, if we need to touch CI pipeline, consider putting it in GitHub Actions and enable sharding in Jest to improve test speed and parallelism.