Updated Upstream (Bukkit/CraftBukkit/Spigot) (#8874)

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:
6b3c598b PR-814: Add a method to send multiple equipment changes
181a984b Update Maven shade version to align with CraftBukkit
a5a36e32 Revert "Update Maven shade version to align with CraftBukkit"
7a8f4a42 Update Maven shade version to align with CraftBukkit
58327201 Add support for Java 20

CraftBukkit Changes:
b56426c7a PR-1142: Calculate explosion damage separately for each affected EntityComplexPart
fbe3410af PR-1140: Add a method to send multiple equipment changes
8434e3633 Add support for Java 20
c998a1d23 Increase outdated build delay
4a929b5d6 SPIGOT-7267: Fix EntityType#getTranslationKey() and add unit test
086d8dc8a SPIGOT-7268: CraftMetaPotion reads ShowParticles and ShowIcon properties incorrectly
8ba5e399e SPIGOT-7262: Improve visibility API

Spigot Changes:
a2190e30 Rebuild patches

patches/server/0032-Only-refresh-abilities-if-needed.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Only refresh abilities if needed
 
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-index 69e197c78b4e6265f61f42232ac2d06687b6ca5e..a6b1cd3361018ce3c7e0760a101184e2d15b69bb 100644
+index eecfbd4e835bfc3d98194365e360a827fb02bb38..27f4387a3ac750114c99e41e855c8fb8081a507d 100644
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
-@@ -1774,12 +1774,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+@@ -1782,12 +1782,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
  
      @Override
      public void setFlying(boolean value) {