e2e: Simple backup and restore flow using MinIO w/ TLS certs

[Joeavaikath]

Title
#2384 added e2e tests using MinIO w/ TLS certs

This issue aims to have backup/restore test e2e flows which use the same setup

[weshayutin]

nice, thanks @Joeavaikath

[kaovilai]

follow ups may include image stream backups coverage, kubevirt coverages

[Joeavaikath]

@SharoonAustin06 feel free to self assign

[SharoonAustin06]

@Joeavaikath Don't have access to assign it to myself.

[kaovilai]

/assign

You can comment like this I believe

[kaovilai]

/unassign