fix: package.json & package-lock.json to reduce vulnerabilities
fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-YARGSPARSER-560381
Ismaestro/angular4-example-app,Ismaestro/angular4-example-app,Ismaestro/angular2-tour-of-heroes,Ismaestro/angular2-tour-of-heroes,Ismaestro/angular4-example-app,Ismaestro/angular2-tour-of-heroes