Common Runtime for Sydney

### Required Terms

- [X] I agree to follow this project's [Code of Conduct](https://github.com/heroku/roadmap/blob/main/CODE_OF_CONDUCT.md)
- [X] I have read and accept the [Salesforce Program Agreement](https://www.salesforce.com/company/program-agreement/)

### What service(s) is this request for?

Dynos

### Tell us about what you're trying to solve. What challenges are you facing?

With our product being available in Common Runtimes in EU and US, we currently are not able to serve our customers in Australia. Heroku is the only service that's not available in AU.

Due to their way of operating and pricing, Private Spaces are not an option.
Heroku not offering a Common Runtimes in AU will drive us into Kubernetes on AWS directly, thus leaving Heroku altogether after some time.