Add PaperMC repository to adapter build logic

Author: MattBDev

build-logic/src/main/kotlin/buildlogic.adapter.gradle.kts

@@ -13,6 +13,10 @@ paperweight {
 }
 
 repositories {
+    maven {
+        name = "PaperMC"
+        url = uri("https://repo.papermc.io/repository/maven-public/")
+    }
     maven {
         name = "EngineHub Repository"
         url = uri("https://maven.enginehub.org/repo/")