Fix crash on blocks without registered blockId (#2022)
Fix crash on blocks without registered blockId (#2022)

* Fix crash on blocks without registered blockId

A simple addition to the already-existing if statement on line 59 ( !blocks[packet.blockId] ) to ignore handling packets coming from unregistered blocks that may have been introduced by protocol modifications (IE a Forge Protocol Extension, https://www.npmjs.com/package/minecraft-protocol-forge)

* Update block_actions.js
andrewrk/mineflayer,PrismarineJS/mineflayer