fix: Allow empty namespace in migration script (#11)

go.mod

@@ -5,19 +5,16 @@ go 1.15
 require (
 	github.com/consensys/gnark-crypto v0.5.0
 	github.com/consensys/quorum v2.7.0+incompatible
-	github.com/ethereum/go-ethereum v1.9.25
+	github.com/ethereum/go-ethereum v1.10.13
 	github.com/golang/mock v1.4.3
 	github.com/hashicorp/go-hclog v0.9.2
 	github.com/hashicorp/vault/api v1.0.5-0.20200117231345-460d63e36490
 	github.com/hashicorp/vault/sdk v0.1.14-0.20200305172021-03a3749f220d
-	github.com/stretchr/testify v1.6.1
+	github.com/stretchr/testify v1.7.0
 	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
 )
 
-replace (
-	github.com/Azure/go-autorest => github.com/Azure/go-autorest v12.4.1+incompatible
-	github.com/docker/docker => github.com/docker/engine v1.4.2-0.20200204220554-5f6d6f3f2203
-)
+replace github.com/Azure/go-autorest => github.com/Azure/go-autorest v12.4.1+incompatible
 
 // Containous forks
 replace (