Removing project from Forge

Last year I setup a Staging and Production server for a client's website using Laravel Forge. The servers are using the clients AWS account. And the code is stored in their GitHub account, automatically deploying when either the 'develop' or 'master' branch is pushed to GitHub. Everything works well.

However, last month I stopped being a freelancer and opted to not continue working with them as I prefer not working on the weekend. The client as already found a new developer to take over development of the website. But I'm not left with the client's server setup in my Forge account and the deployment being managed by my Forge account.

How can I remove the client from my Forge account without disrupting their website? And, how will the new developer continue to deploy to the servers?

I should also point out that the client has a SSL certificate for both the Staging and Production version of the website.

Kind regards, Thom