https://github.com/fedora-infra/anitya/issues/1859

With the move to authlib I found out that the current setup of our container development environment is not great. I will spend some time to improve it.

The main improvements will be:

• [ ] No need to build the whole container when changing conf file
• [ ] Add test users for development as with OIDC the authentication is more complex to do locally
• [ ] Reflect changes immediately when editing source files (no need to restart container)
• [ ] Prepare config example
• [ ] Improve documentation
• [ ] Use fedora packages when possible (this will make it more close to our production deployment)