Move vector in CSVFilesParser instead copying it (Project-OSRM#6470)

Author: SiarheiFedartsou

CHANGELOG.md

@@ -8,6 +8,7 @@
     - NodeJS:
       - CHANGED: Use node-api instead of NAN. [#6452](https://github.com/Project-OSRM/osrm-backend/pull/6452)
     - Misc:
+      - CHANGED: Move vector in CSVFilesParser instead copying it. [#6470](https://github.com/Project-OSRM/osrm-backend/pull/6470)
       - REMOVED: Get rid of unused functions in util/json_util.hpp. [#6446](https://github.com/Project-OSRM/osrm-backend/pull/6446)
       - FIXED: Apply workaround for Conan installation issue on CI. [#6442](https://github.com/Project-OSRM/osrm-backend/pull/6442)
       - FIXED: Fix `npm audit` warnings in NPM package. [#6437](https://github.com/Project-OSRM/osrm-backend/pull/6437)

include/updater/csv_file_parser.hpp

@@ -78,7 +78,7 @@ template <typename Key, typename Value> struct CSVFilesParser
             util::Log() << "In total loaded " << csv_filenames.size() << " file(s) with a total of "
                         << lookup.size() << " unique values";
 
-            return LookupTable<Key, Value>{lookup};
+            return LookupTable<Key, Value>{std::move(lookup)};
         }
         catch (const std::exception &e)
         // TBB should capture to std::exception_ptr and automatically rethrow in this thread.