[VOL-5429] - update voltha-lib-go version to 7.6.6

Change-Id: Icfb05034b265fb758603234764e624c95c5b2762
Signed-off-by: Sridhar Ravindra <sridhar.ravindra@radisys.com>
diff --git a/go.sum b/go.sum
index 6147b32..8caefe3 100644
--- a/go.sum
+++ b/go.sum
@@ -207,8 +207,8 @@
 github.com/onsi/gomega v1.14.0/go.mod h1:cIuvLEne0aoVhAgh/O6ac0Op8WWw9H6eYCriF+tEHG0=
 github.com/opencord/omci-lib-go/v2 v2.2.3 h1:cE9+67m8HmZmlET57eyQmqOOAJlfvvKrLgiJMiwhSMg=
 github.com/opencord/omci-lib-go/v2 v2.2.3/go.mod h1:o1S/jhDLHNikFU7uG2TR5UOM5KmKlqwLlVncXi0FBYQ=
-github.com/opencord/voltha-lib-go/v7 v7.6.5 h1:5WYdjjIQX387Xhy2DPXtF2kuImQ0QTInllVWfRidqTo=
-github.com/opencord/voltha-lib-go/v7 v7.6.5/go.mod h1:uGmArLg+nSZd49YXv7ZaD48FA5c+siEFxnyRuldwv6Y=
+github.com/opencord/voltha-lib-go/v7 v7.6.6 h1:TrLo0nykH2MXPngKzTtmL9/u2gjxs98m1/F0m3FWY2U=
+github.com/opencord/voltha-lib-go/v7 v7.6.6/go.mod h1:uGmArLg+nSZd49YXv7ZaD48FA5c+siEFxnyRuldwv6Y=
 github.com/opencord/voltha-protos/v5 v5.6.2 h1:evT3MYShV8uzLQAfF+qXS6nbdKRNewxifDK49XzqtVM=
 github.com/opencord/voltha-protos/v5 v5.6.2/go.mod h1:E/Jn3DNu8VGRBCgIWSSg4sWtTBiNuQGSFvHyNH1XlyM=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=