CI: fix publish on Docker. (#199)

ldez · cpu · commit 9bc967f5559d · 2019-01-17T16:06:34.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -43,3 +43,4 @@ deploy:
     skip_cleanup: true
     on:
       repo: letsencrypt/pebble
+      tags: true
