Update go.mod

Author: uibm

go.mod

@@ -239,7 +239,7 @@ replace github.com/dgrijalva/jwt-go v3.2.0+incompatible => github.com/golang-jwt
 // add sdk changes.
 replace github.com/portworx/sched-ops v0.0.0-20200831185134-3e8010dc7056 => github.com/portworx/sched-ops v0.20.4-openstorage-rc3 // required by rook v1.7
 
-replace github.com/IBM/vpc-go-sdk v0.65.0 => ./common/github.com/IBM/vpc-go-sdk
+replace github.com/IBM/vpc-go-sdk v0.66.0 => ./common/github.com/IBM/vpc-go-sdk
 replace github.com/hashicorp/consul/api v1.1.0 => github.com/hashicorp/consul/api v1.30.0
 
 replace github.com/hashicorp/vault => github.com/hashicorp/vault v1.18.2