BlockDropItemEvent should refer to getBlockState rather than getBlockData

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/event/block/BlockDropItemEvent.java

@@ -20,7 +20,7 @@ import org.bukkit.event.HandlerList;
  * for example a torch on top of a stone. Both items will have an event call.
  *
  * The Block is already broken as this event is called, so #getBlock() will be
- * AIR in most cases. Use #getBlockData() for more Information about the broken
+ * AIR in most cases. Use #getBlockState() for more Information about the broken
  * block.
  *
  * @deprecated draft API