🌱 CI: bump devstack to 2024.2 (Dalmatian)

[EmilienM]

What this PR does / why we need it:

This PR bumps the version of OpenStack in our CI to test the latest maintained version.

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[EmilienM]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: EmilienM

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[EmilienM]

The version of setuptools is too new or our version of packaging is too old.
https://review.opendev.org/q/topic:%22fix-setuptools-canonicalize-version%22

I couldn't find how to pin things in the CI job here, but since this isn't urgent I'll look at it later unless someone has an idea.

[EmilienM]

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

[EmilienM]

/hold

[EmilienM]

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

[k8s-ci-robot]

@EmilienM: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-provider-openstack-e2e-test	4fb7637	link	true	/test pull-cluster-api-provider-openstack-e2e-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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