reset sponge build

platforms/sponge/build.gradle.kts

@@ -0,0 +1,10 @@
+repositories {
+    maven {
+        url = uri("https://repo-new.spongepowered.org/repository/maven-public/")
+    }
+}
+
+dependencies {
+    "shadedApi"(project(":common:implementation"))
+    annotationProcessor(implementation("org.spongepowered:spongeapi:8.0.0-SNAPSHOT")!!)
+}