GATK4: work around for ApplyBQSR failures
GATK4: work around for ApplyBQSR failures

Avoids GKL deflater issues (broadinstitute/gatk#3605)

vladsaveliev/bcbio-nextgen,biocyberman/bcbio-nextgen,vladsaveliev/bcbio-nextgen,a113n/bcbio-nextgen,chapmanb/bcbio-nextgen,lbeltrame/bcbio-nextgen,a113n/bcbio-nextgen,vladsaveliev/bcbio-nextgen,biocyberman/bcbio-nextgen,lbeltrame/bcbio-nextgen,a113n/bcbio-nextgen,chapmanb/bcbio-nextgen,biocyberman/bcbio-nextgen,chapmanb/bcbio-nextgen,lbeltrame/bcbio-nextgen