This PR addresses these issues with localized groups / tabs with
Postgres / SQLite:
- Array fields inside of localized groups. Fixes
https://github.com/payloadcms/payload/issues/8322
- Select fields with `hasMany: true` inside of localized groups. Related
to 1, but still needed its own additional logic.
- Relationship (non-polymorphic / non has-many) inside of localized
groups. Previously, even just trying to define them in the config led to
a crash. Fixes https://github.com/payloadcms/payload/issues/8308
Ensures test coverage for localized groups.
338c93a229