Updated Upstream (Bukkit/CraftBukkit) (#8430)

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

Bukkit Changes:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY

patches/api/0279-add-isDeeplySleeping-to-HumanEntity.patch

@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Thu, 8 Apr 2021 17:36:15 -0700
+Subject: [PATCH] add isDeeplySleeping to HumanEntity
+
+
+diff --git a/src/main/java/org/bukkit/entity/HumanEntity.java b/src/main/java/org/bukkit/entity/HumanEntity.java
+index 7e23e157eb70e6bf94d0ac4a0196cc5c943dcac4..29885c7184dbec82a6de69c39878276392779d71 100644
+--- a/src/main/java/org/bukkit/entity/HumanEntity.java
++++ b/src/main/java/org/bukkit/entity/HumanEntity.java
+@@ -328,6 +328,15 @@ public interface HumanEntity extends LivingEntity, AnimalTamer, InventoryHolder
+      */
+     public void setCooldown(@NotNull Material material, int ticks);
+ 
++    // Paper start
++    /**
++     * If the player has slept enough to count towards passing the night.
++     *
++     * @return true if the player has slept enough
++     */
++    public boolean isDeeplySleeping();
++    // Paper end
++
+     /**
+      * Get the sleep ticks of the player. This value may be capped.
+      *