[13.x] Ensure ScopedBy Attribute works with inheritance

[jackbayliss]

The ObservedBy attribute works with inheritance, but ScopedBy doesnt.

This PR fixes that.

This is a B/C, but arguably expected behavior IMO, if you did this the booted() way, it would work like this PR.

The code is pretty much a copy paste of what ObservedBy does no lie

Happy to target master, but thought I'd try 13.x first 🫡 Not sure if it needs porting back too

Example:

  class OrgModel extends Model
  {                                                                                                                                                                     
      protected static function booted(): void
      {                                                                                                                                                                 
          static::addGlobalScope(new OrgScope);                                                                                                              
      }
  }
  
  
  class Invoice extends OrgModel { // Has the right scope 
 

 #[ScopedBy(OrgScope::class)]
  class OrgModel extends Model {}
                                                                                                                                                                        
  class Invoice extends OrgModel { // Did not have the scope without this PR

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