Migrate the Carpet codebase to Mojang Mappings

src/main/java/carpet/mixins/ChunkMixin.java

@@ -1,18 +1,18 @@
 package carpet.mixins;
 
 import carpet.CarpetSettings;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.chunk.Chunk;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.level.chunk.ChunkAccess;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
-@Mixin(Chunk.class)
+@Mixin(ChunkAccess.class)
 public abstract class ChunkMixin
 {
     // failed to mixin into interface. need to mixin in two places that uses it
-    @Inject(method = "markBlockForPostProcessing(Lnet/minecraft/util/math/BlockPos;)V",
+    @Inject(method = "markPosForPostprocessing(Lnet/minecraft/core/BlockPos;)V",
         at =@At("HEAD"), cancellable = true)
     private void squashWarnings(BlockPos blockPos_1, CallbackInfo ci)
     {