bump voltha-lib-go version

go.mod
go.sum
vendor/modules.txt
------------------
  o Increment version string and regenerate dependencies.

Change-Id: I2b5662eed71c7897c5ca37cfa236e09b20c97a69
diff --git a/go.mod b/go.mod
index cecc345..457bbb0 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@
 	github.com/golang/protobuf v1.5.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0
 	github.com/opencord/goloxi v1.0.1
-	github.com/opencord/voltha-lib-go/v7 v7.5.2
+	github.com/opencord/voltha-lib-go/v7 v7.5.3
 	github.com/opencord/voltha-protos/v5 v5.4.11
 	github.com/stretchr/testify v1.7.0
 	golang.org/x/net v0.0.0-20210614182718-04defd469f4e