Add std::vector<...>::reserve in ContiguousInternalMemoryDataFacadeBase::GetOverridesThatStartAt (Project-OSRM#7024)

Author: SiarheiFedartsou

include/engine/datafacade/contiguous_internalmem_datafacade.hpp

@@ -603,6 +603,8 @@ class ContiguousInternalMemoryDataFacadeBase : public BaseDataFacade
         auto found_range = std::equal_range(
             m_maneuver_overrides.begin(), m_maneuver_overrides.end(), edge_based_node_id, Comp{});
 
+        results.reserve(std::distance(found_range.first, found_range.second));
+
         std::for_each(found_range.first,
                       found_range.second,
                       [&](const auto &override)