update security

Author: liberodark

package.json

@@ -10,7 +10,7 @@
     "array-unique": "^0.3.2",
     "auto-launch": "^5.0.5",
     "body-parser": "^1.18.2",
-    "bootstrap": "4.1.3",
+    "bootstrap": "4.3.1",
     "chokidar": "^2.0.4",
     "command-line-args": "^5.0.2",
     "deep-equal": "^1.0.1",