go.mod: upgrade "go.uber.org/zap" to v1.9.1
go.mod: upgrade "go.uber.org/zap" to v1.9.1

Signed-off-by: Gyuho Lee <0fbd30d364d71722b926950b451cecd97b54fc29@amazon.com>

mkumatag/etcd,gyuho/etcd,mqliang/etcd,coreos/etcd,cockroachdb/etcd,mkumatag/etcd,joshix/etcd,rnaveiras/etcd,ajityagaty/etcd,coreos/etcd,li-ang/etcd,gyuho/etcd,mqliang/etcd,etcd-io/etcd,joshix/etcd,li-ang/etcd,ajityagaty/etcd,etcd-io/etcd,mkumatag/etcd,mqliang/etcd,xiang90/etcd,dannysauer/etcd,ajityagaty/etcd,cockroachdb/etcd,etcd-io/etcd,dannysauer/etcd,xiang90/etcd,rnaveiras/etcd,rnaveiras/etcd