🐛 [release-0.10] Fix enabling of disabled bastion on upgrade to v1beta1

[mdbooth]

This is a manual backport of #2052. An automated backport is not possible due to the removal of v1alpha5 and v1alpha6 tests on main.

TODO:

• [ ] Merge #2052

/hold

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[mdbooth]

/test pull-cluster-api-provider-openstack-e2e-full-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lentzi90

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/kubernetes-sigs/cluster-api-provider-openstack/blob/release-0.10/OWNERS)~~ [lentzi90] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[EmilienM]

/lgtm /hold cancel