json：fix数组重复加载的bug

shared/pubUtils/dictionary/DicArmyBossRank.ts

@@ -20,7 +20,7 @@ const DicArmyBossRankKeys: KeysEnum<DicArmyBossRank> = {
 
 export const dicArmyBossRank = new Array<DicArmyBossRank>();
 export function loadArmyBossRank() {
-
+    dicArmyBossRank.splice(0, dicArmyBossRank.length);
     let arr = readFileAndParse(FILENAME.DIC_ARMY_BOSS_RANK_REWARD);
     arr.forEach(o => {
         o.reward = parseGoodStr(o.reward);