minio: Install and configure MinIO

[MinIO][0] is an S3-compatible object storage server.  It is designed to
provide storage for cloud-native applications for on-premises
deployments.

MinIO has not been packaged for Fedora (yet?).  As such, the best way to
deploy it is usining its official container image.  Here, we are using
`podman-systemd-generator` (Quadlet) to generate a systemd service
unit to manage the container process.

roles/minio/templates/minio.env.j2

@@ -0,0 +1,4 @@
+MINIO_ROOT_USER={{ minio_root_user }}
+MINIO_ROOT_PASSWORD={{ minio_root_password }}
+
+MINIO_CONSOLE_ADDRESS={{ minio_console_address }}