🌱 Migrate away from custom GitHub action approval workflow

[karimzakzouk]

🌱 Migrate away from custom GitHub action approval workflow

What this PR does / why we need it:
Removes the custom GitHub Actions workflow (pr-gh-workflow-approve.yaml) that
was used to automatically approve workflow runs when /ok-to-test is added to a PR.

This is no longer needed because Prow now natively supports this via
trigger_github_workflows: true, which was enabled for this repo in
kubernetes/test-infra#36752.

Which issue(s) this PR fixes:
Part of kubernetes-sigs/cluster-api#13532

[k8s-ci-robot]

Welcome @karimzakzouk!

It looks like this is your first PR to kubernetes-sigs/controller-tools 🎉. Please refer to our pull request process documentation to help your PR have a smooth ride to approval.

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[k8s-ci-robot]

Hi @karimzakzouk. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alvaroaleman, karimzakzouk

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

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [alvaroaleman]

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

[k8s-ci-robot]

LGTM label has been added.

Details

Git tree hash: 33e64600cef82fccdf0473aa490d5d07080570dd