[Controller] Fix backup and restore process

Summary

• Adds the relevant s3cfg parameters that were missing before
• Adds an ingress for MinIO for feature parity with the charts as well as support for communicating with MinIO over TLS

Closes https://gitlab.com/gitlab-org/gl-openshift/gitlab-operator/-/issues/121

Testing instructions

1. Deploy Operator to cluster:

   # replace 'example.com' with an active domain
   TAG=fix-minio CLEANUP=no DOMAIN=example.com ./scripts/test.sh

2. Wait until the Webservice pods are fully running

   kubectl get deploy gitlab-webservice-default -n gitlab-system

3. Navigate to gitlab.example.com create some sample data (projects, issues, etc).

4. Create a backup: kubectl exec <Task Runner pod name> -it -- backup-utility

5. Delete the sample data you created before.

6. Restore the backup: kubectl exec <Task Runner pod name> -it -- backup-utility --restore -t <timestamp>_<version>

7. Confirm the sample data is restored via gitlab.example.com