Merge pull request #2344 from atom/dependabot/npm_and_yarn/react-16.12.0

Bump react from 16.11.0 to 16.12.0

Author: smashwilson

package-lock.json

@@ -61,7 +61,7 @@
     "moment": "2.24.0",
     "node-emoji": "1.10.0",
     "prop-types": "15.7.2",
-    "react": "16.11.0",
+    "react": "16.12.0",
     "react-dom": "16.11.0",
     "react-relay": "5.0.0",
     "react-select": "1.2.1",