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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:adm-zip:20180415

Latest report for hypery2k/galenframework-cli:core/package.json:
https://snyk.io/test/github/hypery2k/galenframework-cli?targetFile=core/package.json
hypery2k/galenframework-cli,hypery2k/galenframework-cli