Add support of new auto-deploy type Auto-stable

[zmotso]

Is your feature request related to a problem? Please describe.
We need a new auto-deploy flow to deploy the newly built application tag with all other stable applications.

Describe the solution you'd like
Add support of a new auto-deploy flow, Auto-stable to deploy the newly built application tag with all other stable applications.
For applications that don't have stable builds, use the latest tag.