Different types of getting Cauldron water level in 1.17.

[ElseJunsuk]

Describe The Bug

A clear and concise description of what the bug is.

It seems that 1.17 cannot load the water level contained in Cauldron.

Reproduction Steps

Steps to reproduce the bug:

1. Server on
2. Error loading plugin.

Images / Video

If applicable, add screenshots and or upload a video to help demonstrate the bug.

java.lang.ClassCastException: class org.bukkit.craftbukkit.v1_17_R1.block.data.CraftBlockData cannot be cast to class org.bukkit.block.data.Levelled (org.bukkit.craftbukkit.v1_17_R1.block.data.CraftBlockData and org.bukkit.block.data.Levelled are in unnamed module of loader 'app')
at wtf.choco.alchema.cauldron.AlchemicalCauldron.canHeatUp(AlchemicalCauldron.java:288) ~[?:?]
at wtf.choco.alchema.cauldron.AlchemicalCauldron.update(AlchemicalCauldron.java:473) ~[?:?]
at wtf.choco.alchema.cauldron.CauldronUpdateHandler.run(CauldronUpdateHandler.java:85) ~[?:?]
at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftTask.run(CraftTask.java:81) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at org.bukkit.craftbukkit.v1_17_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:400) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1251) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:436) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1199) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1026) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:307) ~[spigot-1.17.jar:3131-Spigot-66f9d3c-c9a92ad]
at java.lang.Thread.run(Thread.java:831) [?:?]

Environment

Server software (Spigot): spigot
Server version (/version): 1.17
Plugin version: latest
**List of other plugins:**No