use latest rsvp

Author: marcoow

package.json

@@ -26,7 +26,7 @@
     "ember-cli-deploy-plugin": "^0.2.9",
     "lodash": "^4.17.11",
     "request": "^2.88.0",
-    "rsvp": "^3.5.0"
+    "rsvp": "^4.8.4"
   },
   "devDependencies": {
     "@ember/optional-features": "^0.6.3",

yarn.lock

@@ -7268,7 +7268,7 @@ rimraf@~2.2.6:
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
   integrity sha1-5Dm+Kq7jJzIZUnMPmaiSnk/FBYI=
 
-rsvp@^3.0.14, rsvp@^3.0.17, rsvp@^3.0.18, rsvp@^3.0.21, rsvp@^3.0.6, rsvp@^3.1.0, rsvp@^3.3.3, rsvp@^3.5.0:
+rsvp@^3.0.14, rsvp@^3.0.17, rsvp@^3.0.18, rsvp@^3.0.21, rsvp@^3.0.6, rsvp@^3.1.0, rsvp@^3.3.3:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
   integrity sha512-OfWGQTb9vnwRjwtA2QwpG2ICclHC3pgXZO5xt8H2EfgDquO0qVdSb5T88L4qJVAEugbS56pAuV4XZM58UX8ulw==