Define policy for deployment approval

[david3107]

Current situation

Github offer simple deployment protection rules. If a deployment matches an environment, designated users will need to approve.

Improvement

Use Gitarmor to

1. check that the approvers are correctly defined in the repo
2. define more complex rule to automatically approve deployments (maybe this requires a separate issue)

Example 1

deployment:
    prod: 
       - user1
       - user2

Example 2

deployment:
  auto-approve:
    dev:
      folders:
        - "/*"
  approval-required:
    prod:
      folders:
        - "a/authN":
            - user1
            - user2
        - authZ:
            - user1
            - user2