trivial: fix ironic test name

[juliakreger]

I accidently put in the wrong test name, test_update_mixed_ops originally, when the actual test name is test_update_port_mixed_ops.

[github-actions]

Thanks for the PR! ❤️
I'm marking it as a draft, once your happy with it merging and the PR is passing CI, click the "Ready for review" button below.

[pablintino]

/approve

[openshift-ci]

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[lewisdenny]

/lgtm

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/2b6ff27b46d94425871191aa8979425f

✔️ openstack-k8s-operators-content-provider SUCCESS in 3h 21m 01s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 17m 22s
❌ cifmw-crc-podified-edpm-baremetal FAILURE in 33m 41s
✔️ cifmw-multinode-tempest SUCCESS in 1h 39m 25s
✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 8m 09s
✔️ cifmw-pod-pre-commit SUCCESS in 7m 46s
✔️ build-push-container-cifmw-client SUCCESS in 38m 18s
✔️ cifmw-molecule-test_operator SUCCESS in 3m 20s

[pablintino]

recheck

[frenzyfriday]

/lgtm