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c998a1d23 Increase outdated build delay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/api/0076-Expose-client-protocol-version-and-virtual-host.patch

@@ -57,10 +57,10 @@ index 0000000000000000000000000000000000000000..7b2af1bd72dfbcf4e962a982940fc49b
 +
 +}
 diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
-index e15a9525b989abee62ca2d8ec924ee492118abb2..7efa33336a6f6309cf11677185fd11a7c0757bb3 100644
+index 7e3e717d6831ac6a206d58313c7f2da0c4b92e6b..0267319ee4e4a7ec3b28ad83572c8e8684d2f9fe 100644
 --- a/src/main/java/org/bukkit/entity/Player.java
 +++ b/src/main/java/org/bukkit/entity/Player.java
-@@ -41,7 +41,7 @@ import org.jetbrains.annotations.Nullable;
+@@ -39,7 +39,7 @@ import org.jetbrains.annotations.Nullable;
  /**
   * Represents a player, connected or not
   */