How to install both an In-Dyno and a Heroku Key-Value Store in Heroku CI?
I want to install both In-Dyno and Heroku Key-Value Store (KVS) in Heroku CI. In-Dyno Heroku KVS is for tests in a single dyno and Heroku KVS is for queuing for parallel tests.
When I write an app.json below, it appears that only Heroku Redis is installed as REDIS_URL, but an In-Dyno Redis isn't installed.
```
{
"environments": {
"test": {
"addons": ["heroku-redis:mini", "heroku-redis:in-dyno"]
}
}
}
```