Is your feature request related to a problem? Please describe.
While the contributor contributes file changes & committed their changes via pull requests, admins/maintainers can't able to track changes visually.
Describe the solution you'd like
We need to integrate the "Heroku CI" feature to get the deployments preview for all upcoming pull requests.
Describe alternatives you've considered
N.A.
Additional context
Take a reference from this article: https://devcenter.heroku.com/articles/heroku-ci