Work with ops to auto promote current channel to testing environment

[tas50]

It would be very helpful to get every new build that's promoted to the current channel automatically deployed to a test environment we can validate builds with. We have a staging environment, but that is specifically used for validation of particular builds before ops promotes to production.

[msys-sgarg]

@tas50 Whenever any PR is merged, build is promoted to current channel right ? So our requirement is that time a deployment should be made on test environment for us to view changes on the application right ?