Allow developers to use testcontainers when running application locally

[jmiranda]

We have started to use testcontainers for our integration tests, but I got really excited thinking that I could get a fresh new development environment set up without having to muck around with creating a user and database and then granting permissions on that database to that user. And then I got even more excited thinking about how I could quickly change version with a parameter in the dataSource URL.