[VOL-5434] update voltha-lib-go for recv grpc rsrc exhauseted

Change-Id: I5d690561c79f8d44b0ec60b41d7bcaac8f8ceca1
Signed-off-by: Abhay Kumar <abhayk@radisys.com>
diff --git a/vendor/modules.txt b/vendor/modules.txt
index bba40c6..e4a06e9 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -137,7 +137,7 @@
 github.com/klauspost/compress/huff0
 github.com/klauspost/compress/zstd
 github.com/klauspost/compress/zstd/internal/xxhash
-# github.com/opencord/voltha-lib-go/v7 v7.6.6
+# github.com/opencord/voltha-lib-go/v7 v7.6.7
 ## explicit
 github.com/opencord/voltha-lib-go/v7/pkg/config
 github.com/opencord/voltha-lib-go/v7/pkg/db