fix: package.json & package-lock.json to reduce vulnerabilities (#338)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DOTPROP-543489
- https://snyk.io/vuln/SNYK-JS-MARKED-584281

Signed-off-by: Lucas Holmquist <lholmqui@redhat.com>

Author: snyk-bot