[VOL-4931] openoltAdapter: memory leak seen in long term tests

Change-Id: Ieb60bd9b4bdf88fc22a3b6704854591c0c30717d
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 6de13ee..faaca9c 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -135,7 +135,7 @@
 github.com/klauspost/compress/huff0
 github.com/klauspost/compress/zstd
 github.com/klauspost/compress/zstd/internal/xxhash
-# github.com/opencord/voltha-lib-go/v7 v7.3.2
+# github.com/opencord/voltha-lib-go/v7 v7.4.1
 ## explicit
 github.com/opencord/voltha-lib-go/v7/pkg/config
 github.com/opencord/voltha-lib-go/v7/pkg/db