New gitops condition works so we don't need this workflow any longer. See tests of the policy bot doing this work at https://github.com/Azure/azure-rest-api-specs/pull/26631

Needed a few commits to get it right but you can see the history of the configuration at https://github.com/Azure/azure-rest-api-specs/commits/main/.github/policies/resourceManagement.yml