increase version number of PackedTrack to reflect change in the definition of LHCbID

Workarounds have been added to convert the LHCbIDs in the tracks for older data to the new scheme.

Event/EventPacker/include/Event/PackedTrack.h

@@ -265,7 +265,7 @@ namespace LHCb {
 
     /// Check if the given packing version is supported
     bool isSupportedVer( const char ver ) const {
-      const bool OK = ( 5 <= ver && ver <= PackedTracks::defaultPackingVersion() );
+      const bool OK = ( 0 <= ver && ver <= PackedTracks::defaultPackingVersion() );
       if ( !OK ) {
         throw GaudiException( fmt::format( "Unknown packed data version {}", (int)ver ), "TrackPacker",
                               StatusCode::FAILURE );