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/0327-add-back-EntityPortalExitEvent.patch

@@ -0,0 +1,21 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Wed, 12 May 2021 02:49:28 -0700
+Subject: [PATCH] add back EntityPortalExitEvent
+
+Was removed here: https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/a2d787f6ebeb72fa7d5750788221fb9a0d838ac4
+
+diff --git a/src/main/java/org/bukkit/event/entity/EntityPortalExitEvent.java b/src/main/java/org/bukkit/event/entity/EntityPortalExitEvent.java
+index 869ad3b12ebd8275d04b0c21b5ecc0389da01490..0a87e2934901eb1bcaec72ed8141cd4828a4efce 100644
+--- a/src/main/java/org/bukkit/event/entity/EntityPortalExitEvent.java
++++ b/src/main/java/org/bukkit/event/entity/EntityPortalExitEvent.java
+@@ -11,6 +11,9 @@ import org.jetbrains.annotations.NotNull;
+  * <p>
+  * This event allows you to modify the velocity of the entity after they have
+  * successfully exited the portal.
++ * <p>
++ * Cancelling this event does not prevent the teleport, but it does prevent
++ * any changes to velocity and location from taking place.
+  */
+ public class EntityPortalExitEvent extends EntityTeleportEvent {
+     private static final HandlerList handlers = new HandlerList();