Add client tick end event (#12199)

paper-api/src/main/java/io/papermc/paper/event/packet/ClientTickEndEvent.java

@@ -0,0 +1,29 @@
+package io.papermc.paper.event.packet;
+
+import org.bukkit.entity.Player;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Called when a {@code minecraft:client_tick_end} packet is received by the server.
+ */
+@NullMarked
+public class ClientTickEndEvent extends PlayerEvent {
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+
+    @ApiStatus.Internal
+    public ClientTickEndEvent(final Player player) {
+        super(player);
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+}