🏃 sync OWNERS and OWNERS_ALIASES for v0.5 release branch

[chrischdi]

What this PR does / why we need it:

Syncs the OWNERS and OWNERS_ALIASES files to the same state as on master so the same who could approve to main are able to approve to the still in-use release branch.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

TODOs:

• [x ] squashed commits
• if necessary:
  • includes documentation
  • adds unit tests

/hold

_{Christian Schlotter christian.schlotter@daimler.com, Daimler TSS GmbH, Provider Information}

[netlify]

✔️ Deploy Preview for kubernetes-sigs-cluster-api-openstack ready!

🔨 Explore the source changes: 2211e58

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😎 Browse the preview: https://deploy-preview-1170--kubernetes-sigs-cluster-api-openstack.netlify.app

[tobiasgiese]

/lgtm

[seanschneeweiss]

/lgtm

[sbueringer]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chrischdi, sbueringer

The full list of commands accepted by this bot can be found here.

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Details

Needs approval from an approver in each of these files:

• OWNERS [sbueringer]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[chrischdi]

Because it was discussed in the office hours :-)

/hold cancel

[mdbooth]

/lgtm

[chrischdi]

We have to wait for #1169 first

[tobiasgiese]

We have to wait for #1169 first

And we have to restart the test as #1169 is merged
/test pull-cluster-api-provider-openstack-e2e-test