Redis dependency is unconditionally activated in 8.x when aliasing Helm chart

At least when aliasing the oauth2-proxy 8.x Helm chart for multiple instances, it consistently installs the Redis dependency, even if `redis: false` is set explicitly on each dependency.

This does not happen when using the chart for a single deployment.

Downgrading to 7.x alleviates the issue, but perhaps a regression was introduced in the process of removing the Bitnami dependency?