处理 SonarQube 问题:

双重检查锁方式实现的单例，改为使用静态内部类方式

app/src/main/java/com/gh/common/util/CommentUtils.java

@@ -397,7 +397,7 @@ public class CommentUtils {
                                           final ImageView commentLikeIv) {
         String entrance = "视频流-评论-取消点赞";
         CheckLoginUtils.checkLogin(context, entrance, () -> {
-            RetrofitManager.getInstance(context).getApi()
+            RetrofitManager.getInstance().getApi()
                     .unVoteVideoComment(videoId, commentEntity.getId())
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
@@ -501,7 +501,7 @@ public class CommentUtils {
 
     @SuppressLint("CheckResult")
     public static void isUserCommentedOnThisGame(String gameId, WeakReference<SimpleCallback<Boolean>> callback) {
-        RetrofitManager.getInstance(HaloApp.getInstance().getApplication())
+        RetrofitManager.getInstance()
                 .getApi()
                 .isUserCommentedOnThisGame(UserManager.getInstance().getUserId(), gameId)
                 .subscribeOn(Schedulers.io())