go.mod updated with latest voltha-lib-go version before release 2.12

Change-Id: I099d1c5e7511886a1e5e95c8d781dae830b59f4b
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 83776b4..5a32d1c 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -231,7 +231,7 @@
 github.com/modern-go/concurrent
 # github.com/modern-go/reflect2 v1.0.1
 github.com/modern-go/reflect2
-# github.com/opencord/voltha-lib-go/v7 v7.3.2
+# github.com/opencord/voltha-lib-go/v7 v7.4.2
 ## explicit
 github.com/opencord/voltha-lib-go/v7/pkg/adapters/common
 github.com/opencord/voltha-lib-go/v7/pkg/config