2486: Fix npm vulnerability warning r=matklad a=edwin0cheng

I see a warning in `npm` when I try to install RA:

```
found 1 high severity vulnerability
```

This PR update package-lock.json by run `npm audit fix` 

Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
This commit is contained in:
bors[bot] 2019-12-06 08:11:58 +00:00 committed by GitHub
commit d2b210a02e
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@ -598,9 +598,9 @@
}
},
"https-proxy-agent": {
"version": "2.2.2",
"resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.2.tgz",
"integrity": "sha512-c8Ndjc9Bkpfx/vCJueCPy0jlP4ccCCSNDp8xwCZzPjKJUm+B+u9WX2x98Qx4n1PiMNTWo3D7KK5ifNV/yJyRzg==",
"version": "2.2.4",
"resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
"integrity": "sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==",
"dev": true,
"requires": {
"agent-base": "^4.3.0",