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c998a1d23 Increase outdated build delay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/0008-Paper-Plugins.patch

@@ -5,11 +5,11 @@ Subject: [PATCH] Paper Plugins
 
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index d54ed6f7c4fa7e287e8daf35f7ae978b5a0a0d51..5aa294bdc1251df8798709a04ce9d34c316c7a17 100644
+index 44af6bd382dca476e4afd458a743ae56c91a8dee..f5aa8d96dce1dbac78a99535786cf9c0085b3b80 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
 @@ -44,7 +44,7 @@ dependencies {
-     implementation("org.ow2.asm:asm-commons:9.2")
+     implementation("org.ow2.asm:asm-commons:9.4")
      // Paper end
  
 -    compileOnly("org.apache.maven:maven-resolver-provider:3.8.5")