fix(package): update p-retry to version 3.0.0

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
     "chalk": "^2.1.0",
     "execa": "^1.0.0",
     "got": "^9.1.0",
-    "p-retry": "^2.0.0",
+    "p-retry": "^3.0.0",
     "semver": "^5.4.1",
     "update-notifier": "^2.3.0",
     "url-join": "^4.0.0",