fix: docs/package.json & docs/package-lock.json to reduce vulnerabili…

…ties

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-LODASH-567746
- https://snyk.io/vuln/SNYK-JS-LODASH-1040724
- https://snyk.io/vuln/SNYK-JS-LODASH-1018905
- https://snyk.io/vuln/SNYK-JS-PATHPARSE-1077067
- https://snyk.io/vuln/SNYK-JS-XML2JS-5414874
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/SNYK-JS-PHIN-6598077