Previously it pointed to ilm-delete-action but it should point to ilm-wait-for-snapshot-action

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• Have you followed the contributor guidelines?
• If submitting code, have you built your formula locally prior to submission with gradle check?
• If submitting code, is your pull request against master? Unless there is a good reason otherwise, we prefer pull requests against master and will backport as needed.
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• If you are submitting this code for a class then read our policy for that.