spec: update hash for 1.6.37.1
spec: update hash for 1.6.37.1

Signed-off-by: Robert Cerven <32de7a518694880140ad479fa3724b97728d8e88@redhat.com>

DBuildService/atomic-reactor,DBuildService/atomic-reactor,fr34k8/atomic-reactor,fr34k8/atomic-reactor,projectatomic/atomic-reactor,projectatomic/atomic-reactor