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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-GOT-2932019
- https://snyk.io/vuln/SNYK-JS-HANDLEBARS-1056767
- https://snyk.io/vuln/SNYK-JS-HANDLEBARS-1279029

Author: snyk-bot