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/server/0591-Add-fast-alternative-constructor-for-Rotations.patch

@@ -0,0 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Irmo van den Berge <irmo.vandenberge@ziggo.nl>
+Date: Wed, 10 Mar 2021 21:26:31 +0100
+Subject: [PATCH] Add fast alternative constructor for Rotations
+
+Signed-off-by: Irmo van den Berge <irmo.vandenberge@ziggo.nl>
+
+diff --git a/src/main/java/net/minecraft/core/Rotations.java b/src/main/java/net/minecraft/core/Rotations.java
+index e4b4e78de933b93be87805501d9cbfec429cf68c..152b1a2cb88c6456282b537611c18975d6da5f57 100644
+--- a/src/main/java/net/minecraft/core/Rotations.java
++++ b/src/main/java/net/minecraft/core/Rotations.java
+@@ -19,6 +19,18 @@ public class Rotations {
+         this(serialized.getFloat(0), serialized.getFloat(1), serialized.getFloat(2));
+     }
+ 
++    // Paper start - faster alternative constructor
++    private Rotations(float x, float y, float z, Void dummy_var) {
++        this.x = x;
++        this.y = y;
++        this.z = z;
++    }
++
++    public static Rotations createWithoutValidityChecks(float x, float y, float z) {
++        return new Rotations(x, y, z, null);
++    }
++    // Paper end
++
+     public ListTag save() {
+         ListTag listTag = new ListTag();
+         listTag.add(FloatTag.valueOf(this.x));