fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:hoek:20180212

Latest report for cblanc/sws_gathers:
https://snyk.io/test/github/cblanc/sws_gathers

package.json

@@ -58,7 +58,7 @@
     "react-autolink": "~0.2.1",
     "react-dom": "~0.14.6",
     "react-emoji": "~0.4.1",
-    "request": "~2.60.0",
+    "request": "~2.82.0",
     "serve-favicon": "~2.3.0",
     "socket.io": "~1.3.7",
     "socket.io-client": "~1.3.0",