Select deployment zone

[javiermelendezc]

TL;DR

The capacity to select a deployment zone on the Action configuration would be much appreciated When you deploy a new app engine application that hasn't been created with the command gcloud app create , the GitHub action selects one as default.

Detailed design

Maybe set the configuration on:

- name: 'Deploy to App Engine'
        uses: 'google-github-actions/deploy-appengine@v0'
        on-zone: 'us-east1'

Additional information

No response