make it tolerant of TBB 2020
https://github.com/Project-OSRM/osrm-backend/pull/6493

Index: src/partitioner/recursive_bisection.cpp
--- src/partitioner/recursive_bisection.cpp.orig
+++ src/partitioner/recursive_bisection.cpp
@@ -65,12 +65,20 @@ RecursiveBisection::RecursiveBisection(BisectionGraph 
                        return TreeNode{std::move(graph), internal_state.SCCDepth()};
                    });
 
+#if TBB_VERSION_MAJOR == 2020
+    using Feeder = tbb::parallel_do_feeder<TreeNode>;
+#else
     using Feeder = tbb::feeder<TreeNode>;
+#endif
 
     TIMER_START(bisection);
 
     // Bisect graph into two parts. Get partition point and recurse left and right in parallel.
+#if TBB_VERSION_MAJOR == 2020
+    tbb::parallel_do(
+#else
     tbb::parallel_for_each(
+#endif
         begin(forest),
         end(forest),
         [&](const TreeNode &node, Feeder &feeder)
