Update dependency @babel/core to v7.8.7

Author: renovate-bot

package-lock.json

@@ -23,7 +23,7 @@
   },
   "homepage": "https://github.com/lastmjs/zwitterion#readme",
   "dependencies": {
-    "@babel/core": "7.8.3",
+    "@babel/core": "7.8.7",
     "@babel/plugin-syntax-dynamic-import": "7.8.3",
     "as-bind": "0.1.3",
     "assemblyscript": "0.8.1",