Finished promote/demote command untested

build.gradle.kts

@@ -2,7 +2,6 @@ plugins {
     `java-library`
     `maven-publish`
     id("com.github.johnrengelman.shadow") version "7.1.0"
-    id("net.minecrell.plugin-yml.bukkit") version "0.5.1"
 }
 
 allprojects {
@@ -45,6 +44,7 @@ subprojects {
                     url = uri("https://repo.destro.xyz/snapshots/")
                     credentials(PasswordCredentials::class)
                 }
+                mavenCentral()
             }
         }
     }