Allow passenger retaining teleport via end gateway

[lynxplay]

Previously paper disabled the abilities for entities to teleport via end gateways if they were being used as a vehicle.

While the behaviour generally worked fine for entities riding other entities, players would quickly end up in an invalid state, not seeing their passenger anymore.

This commit removes the paper introduced limitation by now properly updating the passengers location of a player when they are teleporting through an end gateway.

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Download the paperclip jar for this pull request: paper-10283.zip

[lynxplay]

Successor of #9521

[Chris6ix]

passangers -> passengers 😅