Enforce server-side jetpack state

[DmitriyColeman]

On most MTA servers, a jetpack can only be granted by an moderator or administrator. Allowing clients to spoof a jetpack state can mislead players into thinking the cheater is a member of the administration or development team, which could later be exploited for scamming.

This PR forces the server-side jetpack state when synchronizing players. There is no legitimate way to grant a jetpack on the client side, so relying on client-provided jetpack data is inherently suspicious and should not be used.

[FileEX]

Okay, you’re actually right. There’s no way for a player to have a jetpack on the client side.