SPIGOT-5921: Improve setNoDamageTicks for Players

src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java

@@ -1399,6 +1399,12 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
         }
     }
 
+    @Override
+    public void setNoDamageTicks(int ticks) {
+        super.setNoDamageTicks(ticks);
+        getHandle().invulnerableTicks = ticks; // SPIGOT-5921: Update both for players, like the getter above
+    }
+
     @Override
     public void setFlySpeed(float value) {
         validateSpeed(value);