google-github-actions/deploy-appengine failed with: failed to execute gcloud command `gcloud app deploy --quiet --format json appengine/frontend/app.yaml --promote`: ERROR: (gcloud.app.deploy) The [threadsafe] field is specified in file [/home/runner/work/neuroglancer/neuroglancer/appengine/frontend/app.yaml]. This field is not supported with runtime [python312] and can safely be removed.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/setup-node@v1, actions/cache@v3, bobheadxi/deployments@v1, google-github-actions/auth@v1. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/setup-node@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/