Return empty set if no valid resource packs found

Author: SamB440

api/src/main/java/com/convallyria/forcepack/api/ForcePackPlatform.java

@@ -128,7 +128,7 @@ default Set<ResourcePack> getPacksForVersion(int protocolVersion) {
         }
 
         log("No valid resource packs found");
-        return null;
+        return Set.of();
     }
 
     void log(String info, Object... format);

sponge/build.gradle.kts

@@ -42,6 +42,17 @@ repositories {
     }
 }
 
+configurations {
+    all {
+        resolutionStrategy {
+            force("net.kyori:adventure-api:4.25.0")
+            force("net.kyori:adventure-bom:4.25.0")
+            force("net.kyori:adventure-nbt:4.25.0")
+            force("net.kyori:examination:4.25.0")
+        }
+    }
+}
+
 dependencies {
     implementation(project(":api"))
     implementation(project(":webserver", "shadow"))