The [Mattermost Operator](https://github.com/mattermost/mattermost-operator) is a Kubernetes operator that manages the lifecycle of a Mattermost installation.
Currently, the Minio is the backend to store all the files/images for a Mattermost installation. We would like to have the AWS S3 option
For this ticket implement the new fields to support the user to select AWS S3 instead of MinIO.
need to implement:
read the AWS S3 secret with all information needed.
switch from minio to S3 and not deploy minio