Merge pull request #4334 from DFE-Digital/maintenance_page_send_traffic · DFE-Digital/publish-teacher-training@836cd55

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/checkout@v3, hashicorp/setup-terraform@v2, azure/login@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

`pre` execution is not supported for local action from './.github/actions/deploy_v2/'

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