Replace boost::filesystem with std (#6432)

include/customizer/customizer_config.hpp

@@ -1,9 +1,8 @@
 #ifndef OSRM_CUSTOMIZE_CUSTOMIZER_CONFIG_HPP
 #define OSRM_CUSTOMIZE_CUSTOMIZER_CONFIG_HPP
 
-#include <boost/filesystem/path.hpp>
-
 #include <array>
+#include <filesystem>
 #include <string>
 
 #include "storage/io_config.hpp"
@@ -27,7 +26,7 @@ struct CustomizationConfig final : storage::IOConfig
     {
     }
 
-    void UseDefaultOutputNames(const boost::filesystem::path &base)
+    void UseDefaultOutputNames(const std::filesystem::path &base)
     {
         IOConfig::UseDefaultOutputNames(base);
         updater_config.UseDefaultOutputNames(base);

include/customizer/edge_based_graph.hpp

@@ -9,7 +9,7 @@
 
 #include "storage/shared_memory_ownership.hpp"
 
-#include <boost/filesystem/path.hpp>
+#include <filesystem>
 
 namespace osrm::customizer
 {

include/customizer/files.hpp

@@ -14,7 +14,7 @@ namespace osrm::customizer::files
 
 // reads .osrm.cell_metrics file
 template <typename CellMetricT>
-inline void readCellMetrics(const boost::filesystem::path &path,
+inline void readCellMetrics(const std::filesystem::path &path,
                             std::unordered_map<std::string, std::vector<CellMetricT>> &metrics)
 {
     static_assert(std::is_same<CellMetricView, CellMetricT>::value ||
@@ -44,7 +44,7 @@ inline void readCellMetrics(const boost::filesystem::path &path,
 // writes .osrm.cell_metrics file
 template <typename CellMetricT>
 inline void
-writeCellMetrics(const boost::filesystem::path &path,
+writeCellMetrics(const std::filesystem::path &path,
                  const std::unordered_map<std::string, std::vector<CellMetricT>> &metrics)
 {
     static_assert(std::is_same<CellMetricView, CellMetricT>::value ||
@@ -72,7 +72,7 @@ writeCellMetrics(const boost::filesystem::path &path,
 
 // reads .osrm.mldgr file
 template <typename MultiLevelGraphT>
-inline void readGraph(const boost::filesystem::path &path,
+inline void readGraph(const std::filesystem::path &path,
                       MultiLevelGraphT &graph,
                       std::uint32_t &connectivity_checksum)
 {
@@ -88,7 +88,7 @@ inline void readGraph(const boost::filesystem::path &path,
 
 // writes .osrm.mldgr file
 template <typename MultiLevelGraphT>
-inline void writeGraph(const boost::filesystem::path &path,
+inline void writeGraph(const std::filesystem::path &path,
                        const MultiLevelGraphT &graph,
                        const std::uint32_t connectivity_checksum)
 {