test: add rke2 cluster to e2e test cases

[salasberryfin]

What this PR does / why we need it:

Provision RKE2 CAPI clusters in short e2e tests. This PR also updates the version of the Docker provider, as we need to use some of the fields that don't exist in the old provider version.

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Checklist:

• [x] squashed commits into logical changes
• [ ] includes documentation
• [ ] adds unit tests
• [x] adds or updates e2e tests