make module useage use vendors

.drone.yml

@@ -10,7 +10,8 @@ pipeline:
       - wget https://git.openprivacy.ca/openprivacy/buildfiles/raw/master/tor/torrc
       - chmod a+x tor
       - export GO111MODULE=on
-      - go get
+      - go mod tidy
+      - go vendor
       - go get -u golang.org/x/lint/golint
   quality:
     image: golang