test: fix VirtualMachineMigration

[universal-itengineer]

Description

The VM must be properly configured before the tests can start, using cloud-init.

Why do we need it, and what problem does it solve?

The previous image was pre-configured and already included all the necessary tools.

Fix issue

VirtualMachineMigration [It] verifies that migrations are successful
/home/runner/work/virtualization/virtualization/test/e2e/vm/migration.go:57

  [FAILED] Timed out after 300.000s.
  Expected success, but got an error:
      <*errors.errorString | 0xc000c8d300>: 
      vm-bios-58ngr: guest agent is not ready
      {
          s: "vm-bios-58ngr: guest agent is not ready",
      }

What is the expected result?

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

Changelog entries