fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - @loopback/boot from 7.0.2 to 7.0.5.
    See this package in npm: https://www.npmjs.com/package/@loopback/boot
  - @loopback/core from 6.0.2 to 6.1.2.
    See this package in npm: https://www.npmjs.com/package/@loopback/core
  - @loopback/rest from 14.0.2 to 14.0.5.
    See this package in npm: https://www.npmjs.com/package/@loopback/rest

See this project in Snyk:
https://app.snyk.io/org/ashishkaushik/project/fdc72e8d-c2b2-4f76-b7a2-3b4e6d82dcf1?utm_source=github&utm_medium=referral&page=upgrade-pr