[3pp] build fix after fmt upgrade

src/xenia/ui/achievements_dialog_qt.cc

@@ -446,7 +446,7 @@ QString AchievementsDialogQt::GetUnlockedTime(
     auto unlock_time = std::chrono::system_clock::to_time_t(unlock_tp);
 
     return SafeQString(
-        fmt::format("{:%Y-%m-%d %H:%M}", fmt::localtime(unlock_time)));
+        fmt::format("{:%Y-%m-%d %H:%M}", *std::localtime(&unlock_time)));
   }
 
   return "Unknown time";

src/xenia/ui/game_list_dialog_qt.cc

@@ -781,7 +781,7 @@ std::string GameListDialogQt::FormatLastPlayed(time_t timestamp) {
     return "-";
   }
 
-  return fmt::format("{:%Y-%m-%d %H:%M}", fmt::localtime(timestamp));
+  return fmt::format("{:%Y-%m-%d %H:%M}", *std::localtime(&timestamp));
 }
 
 void GameListDialogQt::OnFilterTextChanged(const QString& text) {