Merge pull request #734 from parity-js/dependabot/npm_and_yarn/babel/node-7.8.4

Author: dependabot-preview[bot]

package-lock.json

@@ -56,7 +56,7 @@
   "devDependencies": {
     "@babel/cli": "^7.8.4",
     "@babel/core": "^7.8.3",
-    "@babel/node": "^7.7.7",
+    "@babel/node": "^7.8.4",
     "@babel/plugin-proposal-class-properties": "^7.7.0",
     "@babel/plugin-proposal-decorators": "^7.8.3",
     "@babel/plugin-proposal-do-expressions": "^7.7.4",