typo(sdk): better formulation for the GAME_DURATION_SOFT_QUOTA

Author: NaejDoree

engine/core/src/main/java/com/codingame/gameengine/core/GameManager.java

@@ -503,7 +503,7 @@ private void addTurnTime() {
         if (this.totalTurnTime > GAME_DURATION_HARD_QUOTA) {
             throw new RuntimeException("Total game duration too long");
         } else if (this.totalTurnTime > GAME_DURATION_SOFT_QUOTA) {
-            log.warn("Warning: please keep the total duration of your total game turns under 25s");
+            log.warn("Warning: too many turns and/or too much time allocated to players per turn");
         }
     }