fix: preventing carjack on scripted entities

[hakanesnn]

Description

The current carjack code prevents killing the driver in bank trucks, carjack works as soon as the gun is pointed, it needs to be blocked in entities generated by any script.

Checklist

• I have personally loaded this code into an updated Qbox project and checked all of its functionality.
• My pull request fits the contribution guidelines & code conventions.

[Manason]

Has GetEntityScript been tested? Does it return nil/false for world spawn vehicles and returns a value for client and server spawned vehicles via native?

[hakanesnn]

Has GetEntityScript been tested? Does it return nil/false for world spawn vehicles and returns a value for client and server spawned vehicles via native?

Yes I tested it, for entities spawned with script the name of the script is returned, for others nil is returned.