Removal of bitnami subcharts

Currently, the scale-result+scale-project helm chart support the deployment of a redis and minio via subcharts which are comming from bitnami. Due to changes of the bitnami image policy regarding the available versions, only latest images can be used which makes it hard to identify breaking changes while the application is running within production.

Future versions of scale-result+scale-project helm chart will no longer have the possibility to deploy Redis and or Minio automatically.

This change is to encourage the use of managed or platform-provided Redis services for reliability, scalability, and security.

For Redis, it is recommended migrating to an external Redis instance or installing Redis via another helm chart beside the application prior to upgrading. Instead of Redis also a Redis compatible application like ValKey could be used.

For Minio, it is recommended to use S3 or an S3 like object storage.