build: Update Spigot API dependency to 1.21.11-R0.2-SNAPSHOT

Author: Greazi-Times

src/main/java/me/TechsCode/GradeBasePlugin/GradleBasePlugin.java

@@ -25,7 +25,7 @@ public class GradleBasePlugin implements Plugin<Project> {
     };
 
     private static final String[] dependencies = new String[] {
-            "compileOnly#org.spigotmc:spigot-api:1.21.10-R0.1-SNAPSHOT",
+            "compileOnly#org.spigotmc:spigot-api:1.21.11-R0.2-SNAPSHOT",
             "compileOnly#net.md-5:bungeecord-api:1.21-R0.4-SNAPSHOT"
     };