fix: use localtime_s on Windows for log timestamp

Author: Sunrisepeak

src/log.cppm

@@ -78,7 +78,11 @@ std::string timestamp() {
     auto ms  = std::chrono::duration_cast<std::chrono::milliseconds>(
                    now.time_since_epoch()) % 1000;
     std::tm tm{};
+#if defined(_WIN32)
+    localtime_s(&tm, &tt);
+#else
     localtime_r(&tt, &tm);
+#endif
     char buf[32];
     std::snprintf(buf, sizeof(buf), "%04d-%02d-%02d %02d:%02d:%02d.%03d",
         tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,