cleaned up build process

core-velocity-impl/build.gradle.kts

@@ -1,30 +1,18 @@
 plugins {
     id("java")
-    id("com.gradleup.shadow") version "9.2.0"
-    id("de.kentoj.scrow.scrow-repository")
-    id("de.kentoj.scrow.base-dependencies")
-    id("de.kentoj.scrow.database")
+    alias(libs.plugins.shadow)
+    alias(libs.plugins.scrow.basedependencies)
+    alias(libs.plugins.scrow.database)
 }
 
 group = "de.kentoj.scrow"
 
-repositories {
-    mavenCentral()
-    maven {
-        name = "papermc"
-        url = uri("https://repo.papermc.io/repository/maven-public/")
-    }
-}
-
 dependencies {
     implementation(project(":core-velocity-api")) {
         isTransitive = true
     }
-    // https://docs.papermc.io/velocity/dev/creating-your-first-plugin/
-    annotationProcessor("com.velocitypowered:velocity-api:3.5.0-SNAPSHOT")
-
-    // https://mvnrepository.com/artifact/org.postgresql/postgresql
-    implementation("org.postgresql:postgresql:42.7.12")
+    annotationProcessor(libs.velocity.api)
+    implementation(libs.postgres)
 }
 
 tasks.build {