feat: add Cancellable.cancel extension function and bump version to 1.21.8-2.36.0

- Introduced a `cancel` extension function for the `Cancellable` class.
- Updated project version in `gradle.properties`.

Author: twisti-dev

gradle.properties

@@ -7,6 +7,6 @@ org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled
 javaVersion=21
 mcVersion=1.21.8
 group=dev.slne.surf
-version=1.21.8-2.35.0
+version=1.21.8-2.36.0
 relocationPrefix=dev.slne.surf.surfapi.libs
 snapshot=true

surf-api-bukkit/surf-api-bukkit-api/api/surf-api-bukkit-api.api

@@ -1357,6 +1357,7 @@ public final class dev/slne/surf/surfapi/bukkit/api/dialog/builder/DialogTypeBui
 }
 
 public final class dev/slne/surf/surfapi/bukkit/api/event/Listener_extensionKt {
+	public static final fun cancel (Lorg/bukkit/event/Cancellable;)V
 	public static final fun listen (Lorg/bukkit/plugin/Plugin;Lkotlin/reflect/KClass;Lorg/bukkit/event/EventPriority;ZZLkotlin/jvm/functions/Function1;)Ldev/slne/surf/surfapi/bukkit/api/event/SingleListener;
 	public static synthetic fun listen$default (Lorg/bukkit/plugin/Plugin;Lkotlin/reflect/KClass;Lorg/bukkit/event/EventPriority;ZZLkotlin/jvm/functions/Function1;ILjava/lang/Object;)Ldev/slne/surf/surfapi/bukkit/api/event/SingleListener;
 	public static final fun register (Ldev/slne/surf/surfapi/bukkit/api/event/SingleListener;Lorg/bukkit/plugin/Plugin;Lkotlin/reflect/KClass;)V

surf-api-bukkit/surf-api-bukkit-api/src/main/kotlin/dev/slne/surf/surfapi/bukkit/api/event/listener-extension.kt

@@ -1,10 +1,7 @@
 package dev.slne.surf.surfapi.bukkit.api.event
 
 import dev.slne.surf.surfapi.bukkit.api.extensions.pluginManager
-import org.bukkit.event.Event
-import org.bukkit.event.EventPriority
-import org.bukkit.event.HandlerList
-import org.bukkit.event.Listener
+import org.bukkit.event.*
 import org.bukkit.plugin.Plugin
 import org.bukkit.plugin.java.JavaPlugin
 import kotlin.reflect.KClass
@@ -120,3 +117,7 @@ inline fun <reified T : Event> Any.listen(
     register,
     onEvent
 )
+
+fun Cancellable.cancel() {
+    isCancelled = true
+}