Update etcd to 3.4.9

This also ends up setting the data dir to 0700 to satisfy a new check
added to the data dir. #41 requested this changed for security reasons
and it was denied, but must ultimately be changed to maintain
compatibility with etcd.

go.mod

@@ -1,21 +1,23 @@
 module github.com/criticalstack/e2d
 
-go 1.13
+go 1.14
 
 require (
 	github.com/aws/aws-sdk-go v1.30.7
 	github.com/cloudflare/cfssl v1.4.1
+	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/digitalocean/go-metadata v0.0.0-20180111002115-15bd36e5f6f7
 	github.com/digitalocean/godo v1.34.0
 	github.com/fatih/color v1.7.0
-	github.com/gogo/protobuf v1.2.1
+	github.com/gogo/protobuf v1.3.1
 	github.com/google/go-cmp v0.5.0
 	github.com/hashicorp/memberlist v0.2.0
 	github.com/pkg/errors v0.9.1
-	github.com/spf13/cobra v0.0.3
-	go.etcd.io/bbolt v1.3.3
-	go.etcd.io/etcd v0.5.0-alpha.5.0.20200401174654-e694b7bb0875
-	go.uber.org/zap v1.10.0
+	github.com/spf13/cobra v1.0.0
+	go.etcd.io/bbolt v1.3.5
+	go.etcd.io/etcd v0.5.0-alpha.5.0.20200707173218-d3a702a09d92
+	go.uber.org/zap v1.15.0
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
-	google.golang.org/grpc v1.26.0
+	golang.org/x/text v0.3.3 // indirect
+	google.golang.org/grpc v1.29.1
 )