fix: package.json to reduce vulnerabilities
fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:bson:20180225
- https://snyk.io/vuln/npm:cryptiles:20180710
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:extend:20180424
- https://snyk.io/vuln/npm:lodash:20180130
- https://snyk.io/vuln/npm:mime:20170907
- https://snyk.io/vuln/npm:sshpk:20180409
- https://snyk.io/vuln/npm:stringstream:20180511

OpesanyaAdebayo/career-advisor,OpesanyaAdebayo/career-advisor