Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@6d0833ec Use target level for waypoint modify command (#12933)
PaperMC/Paper@9694886d Fix endermite spawn position
PaperMC/Paper@a664311f Fix AbstractArrow not setting noPhysics flag (#12935)

gradle.properties

@@ -2,7 +2,7 @@ group = org.purpurmc.purpur
 version = 1.21.8-R0.1-SNAPSHOT
 
 mcVersion = 1.21.8
-paperCommit = 846c64f4d1852aa0079978c72a71883fd5039ee8
+paperCommit = a664311f0fb2643e45e2ef8aa7683af94f75ea14
 
 org.gradle.configuration-cache = true
 org.gradle.caching = true

purpur-server/minecraft-patches/sources/net/minecraft/world/entity/projectile/ThrownEnderpearl.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
 +++ b/net/minecraft/world/entity/projectile/ThrownEnderpearl.java
-@@ -126,9 +_,10 @@
+@@ -129,9 +_,10 @@
                              return;
                          }
                          // CraftBukkit end
@@ -9,10 +9,10 @@
                              Endermite endermite = EntityType.ENDERMITE.create(serverLevel, EntitySpawnReason.TRIGGERED);
                              if (endermite != null) {
 +                                endermite.setPlayerSpawned(true); // Purpur - Add back player spawned endermite API
-                                 endermite.snapTo(owner.getX(), owner.getY(), owner.getZ(), owner.getYRot(), owner.getXRot());
+                                 endermite.snapTo(preTeleportX, preTeleportY, preTeleportZ, preTeleportYRot, preTeleportXRot); // Paper - spawn endermite at pre teleport position as teleport has been moved up
                                  serverLevel.addFreshEntity(endermite, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.ENDER_PEARL);
                              }
-@@ -148,7 +_,7 @@
+@@ -151,7 +_,7 @@
                          if (serverPlayer1 != null) {
                              serverPlayer1.resetFallDistance();
                              serverPlayer1.resetCurrentImpulseContext();