VOL-1643 Update voltha-lib-go to use voltha-protos v3.0.0

and bump up the version to 3.0.0. voltha-protos is modified to be
compatible with the java language proto compilation. It's a major
change and a major version change has been made.

Change-Id: Ifb93430567ddf96aaa0fbf6e5853aad9e1070f6f
diff --git a/pkg/adapters/common/events_proxy.go b/pkg/adapters/common/events_proxy.go
index ebc9423..034de8e 100644
--- a/pkg/adapters/common/events_proxy.go
+++ b/pkg/adapters/common/events_proxy.go
@@ -23,10 +23,10 @@
 	"strings"
 	"time"
 
-	"github.com/opencord/voltha-lib-go/v2/pkg/adapters/adapterif"
-	"github.com/opencord/voltha-lib-go/v2/pkg/kafka"
-	"github.com/opencord/voltha-lib-go/v2/pkg/log"
-	"github.com/opencord/voltha-protos/v2/go/voltha"
+	"github.com/opencord/voltha-lib-go/v3/pkg/adapters/adapterif"
+	"github.com/opencord/voltha-lib-go/v3/pkg/kafka"
+	"github.com/opencord/voltha-lib-go/v3/pkg/log"
+	"github.com/opencord/voltha-protos/v3/go/voltha"
 )
 
 type EventProxy struct {