Fix a few IDE warnings (#1345)

src/main/java/carpet/script/CarpetEventServer.java

@@ -870,13 +870,13 @@ public class CarpetEventServer
             {
                 return stat.getType().getRegistry().getKey(stat.getValue());
             }
-            private final Set<ResourceLocation> skippedStats = new HashSet<ResourceLocation>(){{
-                add(Stats.TIME_SINCE_DEATH);
-                add(Stats.TIME_SINCE_REST);
-                //add(Stats.PLAY_ONE_MINUTE);
-                add(Stats.PLAY_TIME);
-                add(Stats.TOTAL_WORLD_TIME);
-            }};
+            private final Set<ResourceLocation> skippedStats = Set.of(
+                Stats.TIME_SINCE_DEATH,
+                Stats.TIME_SINCE_REST,
+                //Stats.PLAY_ONE_MINUTE,
+                Stats.PLAY_TIME,
+                Stats.TOTAL_WORLD_TIME
+            );
             @Override
             public void onPlayerStatistic(ServerPlayer player, Stat<?> stat, int amount)
             {