Use Go proxy (#7)

klauspost · web-flow · commit 1ee1366efb8a · 2019-11-07T16:23:57.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -15,6 +15,7 @@ env:
   global: 
     - DOCKER_USER=vivino
     - GO111MODULE=on
+    - GOPROXY=https://proxy.golang.org
 
 # needed for the docker pipe
 services:
