Docs for Datagen in LootTables does not reflect the actual super for LootTableProvider

[IanOlds]

https://docs.neoforged.net/docs/resources/server/loottables/#blocklootsubprovider

All the supers shown for the lootTableProvider to be pasted in to implement a loot, block or entity subprovider only provide 3 arguments. The super actually takes in 4 and needs the lookupProvider from the event.

This is not clear in the docs and should be clarified to not cause confusion since the variable for the lookup is named registries which implies a loot, block, or entity registry, not the event lookup.