Increase PackedOSMIDs size to 34 bits

OSM node 2^33 was created in early April 2021. This and all
subsequently created IDs will be overflowing OSRM node storage
which only support 33 bit IDs.
Bump the number of bits to 34 to double node ID capacity. This
is a breaking change to the data format as it alters the layout
of .osrm.nbg_nodes.

CHANGELOG.md

@@ -4,6 +4,7 @@
       - FIXED: Upgrade to @mapbox/node-pre-gyp fix various bugs with Node 12/14 [#5991](https://github.com/Project-OSRM/osrm-backend/pull/5991)
       - FIXED: `valid` type in documentation examples [#5990](https://github.com/Project-OSRM/osrm-backend/issues/5990)
       - FIXED: Remove redundant loading of .osrm.cell_metrics [#6019](https://github.com/Project-OSRM/osrm-backend/issues/6019)
+      - CHANGED: Increase PackedOSMIDs size to 34 bits. This breaks the **data format** [#6020](https://github.com/Project-OSRM/osrm-backend/issues/6020)
     - Profile:
       - FIXED: Add kerb barrier exception to default car profile. [#5999](https://github.com/Project-OSRM/osrm-backend/pull/5999)
 

include/extractor/packed_osm_ids.hpp

@@ -11,7 +11,7 @@ namespace extractor
 namespace detail
 {
 template <storage::Ownership Ownership>
-using PackedOSMIDs = util::detail::PackedVector<OSMNodeID, 33, Ownership>;
+using PackedOSMIDs = util::detail::PackedVector<OSMNodeID, 34, Ownership>;
 }
 
 using PackedOSMIDsView = detail::PackedOSMIDs<storage::Ownership::View>;