ci: enable travis npm cache

nhooyr · nhooyr · commit 1e8dc37426e2 · 2019-03-08T12:19:51.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -35,3 +35,4 @@ deploy:
   on:
     repo: codercom/code-server
     branch: master
+cache: npm
