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:debug:20170905
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:fresh:20170908
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:debug:20170905
- https://snyk.io/vuln/npm:fresh:20170908

Latest report for arikalfus/node-template-server:
https://snyk.io/test/github/arikalfus/node-template-server
arikalfus/node-template-server,arikalfus/node-template-server