Use voltha-protos version 4.0.2
Bump major version of voltha-lib-go to 4.0.0 as this change results
in incompatible API version compared to previous version

Change-Id: I1def58361fb1d85f07d6948ebf1ffb7a92eb0d4c
diff --git a/pkg/kafka/kafka_inter_container_library.go b/pkg/kafka/kafka_inter_container_library.go
index 92d2529..3af35d7 100644
--- a/pkg/kafka/kafka_inter_container_library.go
+++ b/pkg/kafka/kafka_inter_container_library.go
@@ -31,8 +31,8 @@
 	"github.com/golang/protobuf/ptypes"
 	"github.com/golang/protobuf/ptypes/any"
 	"github.com/google/uuid"
-	"github.com/opencord/voltha-lib-go/v3/pkg/log"
-	ic "github.com/opencord/voltha-protos/v3/go/inter_container"
+	"github.com/opencord/voltha-lib-go/v4/pkg/log"
+	ic "github.com/opencord/voltha-protos/v4/go/inter_container"
 	"github.com/opentracing/opentracing-go"
 )