SEBA-902 single-olt tests;
Pin protoc-gen-go to 1.3.2 to resolve compatibility issue;
Run go mod tidy / go mod vendor on importer;
Add Go Module support to demotest

Change-Id: Ifde824fc9a6317b0adc1e12bea54ee1f9b788906
diff --git a/vendor/github.com/Shopify/sarama/request.go b/vendor/github.com/Shopify/sarama/request.go
index 97437d6..6e4ad87 100644
--- a/vendor/github.com/Shopify/sarama/request.go
+++ b/vendor/github.com/Shopify/sarama/request.go
@@ -105,7 +105,7 @@
 	case 0:
 		return &ProduceRequest{}
 	case 1:
-		return &FetchRequest{}
+		return &FetchRequest{Version: version}
 	case 2:
 		return &OffsetRequest{Version: version}
 	case 3: