Cranked up CI test suite wait duration to alleviate their nondeterminism for now

test/integration/helpers.js

@@ -2,6 +2,6 @@ function wait(time) {
   return new Promise(function(resolve, reject) {
     setTimeout(function() {
       resolve()
-    }, time || 500)
+    }, time * 3 || 1500)
   })
 }