Add compat constructor to PlayerAnimationEvent

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/event/player/PlayerAnimationEvent.java

@@ -13,6 +13,11 @@ public class PlayerAnimationEvent extends PlayerEvent implements Cancellable {
     private final PlayerAnimationType animationType;
     private boolean isCancelled = false;
 
+    @Deprecated
+    public PlayerAnimationEvent(@NotNull final Player player) {
+        this(player, PlayerAnimationType.ARM_SWING);
+    }
+
     /**
      * Construct a new PlayerAnimation event
      *