[Auto] Updated Upstream (CraftBukkit)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
b6a876bc3 SPIGOT-5936: BlockPlaceEvent does not fire for lily_pad

Spigot-Server-Patches/0252-Vanished-players-don-t-have-rights.patch

@@ -62,10 +62,10 @@ index cdf80e50de0840002f62f4c1df4fbcc4e13675d7..ea5f5845a8d202e62da3ae1bfb1e4dbd
              return false;
          }
 diff --git a/src/main/java/net/minecraft/server/ItemBlock.java b/src/main/java/net/minecraft/server/ItemBlock.java
-index 6c7f677f68d89d7e08c07a0f24268c5a638b4076..33d38a9a8a55c7a26d9a584e8058f42556b6ed59 100644
+index d83bd0169bb4b8c25f44ae3582e58b8fea97ecbd..63d2294da4f0da628e62b782b71e34cb3eb959b5 100644
 --- a/src/main/java/net/minecraft/server/ItemBlock.java
 +++ b/src/main/java/net/minecraft/server/ItemBlock.java
-@@ -139,7 +139,8 @@ public class ItemBlock extends Item {
+@@ -154,7 +154,8 @@ public class ItemBlock extends Item {
          EntityHuman entityhuman = blockactioncontext.getEntity();
          VoxelShapeCollision voxelshapecollision = entityhuman == null ? VoxelShapeCollision.a() : VoxelShapeCollision.a((Entity) entityhuman);
          // CraftBukkit start - store default return