The import string for voltha-lib-go library needs to change from v5
to v6 after a major version upgrade of the voltha-lib-go library.

Change-Id: If443376b150e0f4bb49f50cb2c8cf8c132b7244b
diff --git a/pkg/mocks/kafka/kafka_client.go b/pkg/mocks/kafka/kafka_client.go
index 92966a7..ce9dada 100644
--- a/pkg/mocks/kafka/kafka_client.go
+++ b/pkg/mocks/kafka/kafka_client.go
@@ -23,8 +23,8 @@
 	"time"
 
 	"github.com/golang/protobuf/proto"
-	"github.com/opencord/voltha-lib-go/v5/pkg/kafka"
-	"github.com/opencord/voltha-lib-go/v5/pkg/log"
+	"github.com/opencord/voltha-lib-go/v6/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v6/pkg/log"
 	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
 	"github.com/opencord/voltha-protos/v4/go/voltha"
 	"google.golang.org/grpc/codes"