chore(dependencies): update request to 2.57

Closes angular#2205

Author: sjelin

package.json

@@ -12,7 +12,7 @@
   ],
   "author": "Julie Ralph <[email protected]>",
   "dependencies": {
-    "request": "~2.36.0",
+    "request": "~2.57.0",
     "selenium-webdriver": "2.45.1",
     "minijasminenode": "1.1.1",
     "jasminewd": "1.1.0",