e2e testing: Add scenarios to test upgrades for components

[surajssd]

Right now we test if things are installed and they can be used, etc. but we need a way to test upgrades. This includes upgrades of components and the kubernetes cluster.

Idea from @iaguis

• We should download the last release binary and install stuff using that and try to upgrade the stuff using the latest PR commit.

[invidian]

This duplicates #12.

[surajssd]

@invidian Should we segregate them one for component and other for cluster? Like this for the component update and #12 for updating the cluster?

[invidian]

Hm, yeah, I think that make sense. Good idea @surajssd. However, the implementation will be quite similar I think. Perhaps we could start with testing component upgrades and then focus on controlplane and nodes configuration.

[invidian]

Having #312 in place would make this easier. We could then just load older release, install components from it and then do the upgrade.