downgrade kryo version in bdgutils to 2.21.1
downgrade kryo version in bdgutils to 2.21.1

tkdagdelen/gnocchi,kunalgosar/gnocchi,bigdatagenomics/gnocchi,Veryku/gnocchi,tkdagdelen/gnocchi,kunalgosar/gnocchi,Veryku/gnocchi,bigdatagenomics/gnocchi