Update dependencies (node-fetch#488)

Author: TimothyGu

package.json

@@ -48,14 +48,14 @@
     "cross-env": "^5.1.3",
     "form-data": "^2.3.1",
     "mocha": "^5.0.0",
-    "nyc": "^11.4.1",
+    "nyc": "11.9.0",
     "parted": "^0.1.1",
     "promise": "^8.0.1",
     "resumer": "0.0.0",
-    "rollup": "^0.55.1",
+    "rollup": "^0.63.4",
     "rollup-plugin-babel": "^3.0.3",
     "string-to-arraybuffer": "^1.0.0",
-    "url-search-params": "^0.10.0",
+    "url-search-params": "^1.0.2",
     "whatwg-url": "^5.0.0"
   },
   "dependencies": {}