Build the non-creation talent set without Set.of for the Java 8 build

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/objects/RuneBase.java

@@ -21,7 +21,9 @@ import org.pmw.tinylog.Logger;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
@@ -32,7 +34,7 @@ public class RuneBase extends AbstractGameObject {
     public static HashMap<Integer, ArrayList<Integer>> AllowedRaceRunesMap = new HashMap<>();
     // Flagged rune_is_standard_character_creation but missing from CharCreateRuneList.cfg ATTRRUNES:
     // admin runes 2910/2911, unused duplicates, and Proficient with Bows (commented out in the cfg).
-    private static final Set<Integer> NON_CREATION_TALENTS = Set.of(2910, 2911, 250081, 250116, 250117, 250123, 250124, 250125);
+    private static final Set<Integer> NON_CREATION_TALENTS = new HashSet<>(Arrays.asList(2910, 2911, 250081, 250116, 250117, 250123, 250124, 250125));
     private final String name;
     private final String description;
     private final int type;