fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - @babel/core from 7.11.6 to 7.16.7.
    See this package in npm: https://www.npmjs.com/package/@babel/core
  - @babel/plugin-transform-object-assign from 7.12.1 to 7.16.7.
    See this package in npm: https://www.npmjs.com/package/@babel/plugin-transform-object-assign
  - @babel/preset-env from 7.11.5 to 7.16.8.
    See this package in npm: https://www.npmjs.com/package/@babel/preset-env

See this project in Snyk:
https://app.snyk.io/org/yext/project/e74c8f37-e887-411d-90f8-0d2b86e3939d?utm_source=github&utm_medium=referral&page=upgrade-pr