Fix/security issues (facebook#19373)

Summary:
This updates both [`react-devtools-core`](facebook/react-devtools#941) and [`plist`](TooTallNate/plist.js@04c8ee7) to include security fixes, reported by `npm audit`.

Fixes facebook#18854

_Only dependencies are updated with security patches, no change in actual code._

_Only dependencies are updated with security patches, no change in actual code._

[GENERAL] [ENHANCEMENT] [react-devtools-core] - Bump to `3.2.2` for a security fix for `ws`
[GENERAL] [ENHANCEMENT] [plist] - Bump to `3.0.0` for a security fix for `xmlbuilder`

Closes facebook#19373

Reviewed By: sophiebits

Differential Revision: D8149200

Pulled By: hramos

fbshipit-source-id: 732fd627b232c315be60ed2da432742e8256a38a

Author: byCedric

package.json

@@ -180,12 +180,12 @@
     "npmlog": "^2.0.4",
     "opn": "^3.0.2",
     "optimist": "^0.6.1",
-    "plist": "^1.2.0",
+    "plist": "^3.0.0",
     "pretty-format": "^4.2.1",
     "promise": "^7.1.1",
     "prop-types": "^15.5.8",
     "react-clone-referenced-element": "^1.0.1",
-    "react-devtools-core": "3.1.0",
+    "react-devtools-core": "^3.2.2",
     "react-timer-mixin": "^0.13.2",
     "regenerator-runtime": "^0.11.0",
     "rimraf": "^2.5.4",