[Auto] Updated Upstream (CraftBukkit)

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

CraftBukkit Changes:
2ffdb31ec Use upstream plexus-compiler-eclipse

Spigot-Server-Patches/0466-Implement-Mob-Goal-API.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Implement Mob Goal API
 
 
 diff --git a/pom.xml b/pom.xml
-index ba6e70eb472bda9d0cf51c3b69a5bd41fc24c399..9ba379b7e3ee3bc8c6d2c8ec46213c404c73d682 100644
+index 324e51d262ec4dc3224da3e21209c53c37a13644..11b4d56922cae5ba3f76c21a76a8ae40b3719afa 100644
 --- a/pom.xml
 +++ b/pom.xml
 @@ -142,6 +142,13 @@
@@ -21,7 +21,7 @@ index ba6e70eb472bda9d0cf51c3b69a5bd41fc24c399..9ba379b7e3ee3bc8c6d2c8ec46213c40
 +        </dependency>
      </dependencies>
  
-     <repositories>
+     <!-- This builds a completely 'ready to start' jar with all dependencies inside -->
 diff --git a/src/main/java/com/destroystokyo/paper/entity/ai/MobGoalHelper.java b/src/main/java/com/destroystokyo/paper/entity/ai/MobGoalHelper.java
 new file mode 100644
 index 0000000000000000000000000000000000000000..89b56de7567ae54be75e0735b712e4dd713f1bf4
@@ -873,7 +873,7 @@ index 22773eca7561d39cd838338efe6d40ab9421feba..2e56fcc32f914d2b5f4bb9d368f504f4
  
      public PathfinderGoalWrapped(int i, PathfinderGoal pathfindergoal) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index d0091fb05a0122e099d4d496f3e04a91b778cff2..e466dd5077fbae6963783774cb7a32b0bbca41ac 100644
+index f0b348264455655d203e67f008b67ed7de089047..6728a0f753a457fea485265739ca85ebebbf40bb 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 @@ -2385,5 +2385,11 @@ public final class CraftServer implements Server {