Update nebula_decoders/src/nebula_decoders_velodyne/decoders/vls128_d…

…ecoder.cpp

Co-authored-by: Benjamin Gilby <[email protected]>

nebula_decoders/src/nebula_decoders_velodyne/decoders/vls128_decoder.cpp

@@ -123,7 +123,7 @@ void Vls128Decoder::reset_overflow(double time_stamp)
     // be relative to the overflow's packet timestamp
     double new_timestamp_seconds =
       scan_timestamp_ + 1e-9 * overflow_point.time_stamp - last_block_timestamp_;
-    overflow_point.time_stamp = new_timestamp_seconds < 0.0 ? 0.0 : 1e9 * new_timestamp_seconds;
+    overflow_point.time_stamp = static_cast<uint32_t>(new_timestamp_seconds < 0.0 ? 0.0 : 1e9 * new_timestamp_seconds);
 
     scan_pc_->points.emplace_back(overflow_point);
     overflow_pc_->points.pop_back();