chore: allow babel@8 peer dependencies

[whydrae]

This PR allow the babel@8 peer dependencies for @babel/core and @babel/preset-env.

Cause: while trying to use this package with the latest version of @vitejs/plugin-react, npm throws the following errors:

ERESOLVE could not resolve
...
peer @babel/preset-env@"^7.0.0" from @cypress/code-coverage@4.0.3
...
dev @vitejs/plugin-react@"*" from the root project
Conflicting peer dependency: @babel/core@8.0.1

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[CLAassistant]

All committers have signed the CLA.