*Bump Minecraft version in build.gradle to 1.18.

*Update Spigot compatibility check for 1.18.

build.gradle

@@ -33,7 +33,7 @@ dependencies {
 
 tasks {
 	specialGradle {
-		minecraftVersion.set("1.17.1")
+		minecraftVersion.set("1.18")
 		specialSourceVersion.set("1.10.0")
 	}
 }

src/main/java/net/theprogrammersworld/herobrine/Herobrine.java

@@ -78,7 +78,7 @@ public class Herobrine extends JavaPlugin implements Listener {
 		// If it is not, print an error message and disable the plugin.
 		if (continueWithEnable) {
 			try {
-				Class.forName("org.bukkit.craftbukkit.v1_17_R1.CraftArt");
+				Class.forName("org.bukkit.craftbukkit.v1_18_R1.CraftArt");
 			} catch (ClassNotFoundException e) {
 				Bukkit.getServer().getConsoleSender().sendMessage(ChatColor.RED + "This version of Herobrine is not "
 						+ "compatible with this server's Spigot version and will be disabled.");