fix(deps): update module github.com/envoyproxy/protoc-gen-validate to v0.6.1

Author: renovate-bot

go.mod

@@ -10,7 +10,7 @@ replace google.golang.org/grpc => google.golang.org/grpc v1.26.0
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.4.1 // indirect
-	github.com/envoyproxy/protoc-gen-validate v0.1.0
+	github.com/envoyproxy/protoc-gen-validate v0.6.1
 	github.com/gogo/protobuf v1.3.1
 	github.com/golang/protobuf v1.4.2
 	github.com/infobloxopen/atlas-app-toolkit v0.21.1