* feat: update retry logic for validation call
- update validation for service account validation call to use `select` instead of `sleep`
- add `validateServiceAccountKeyTimeout` to config. This makes it easier to control the timeout from tests so tests do not have to run for long with the default timeout
* feat: enhance service account key rotation with validation callback
- add validation callback will enable the host service to validate the newly created key before the deleting the old key
- wrapped both the call to validate permissions and validate callback in a retry because sometimes it takes some time for the newly created key to be active on GCP services. This throws an error and prevents host catalog creation
* fix: Cred rotation
- fix bug where the rotated service account key was not read. The response needs to be unmarshalled to pull out the values from th fields
- fix bug where the time stamp was not getting updated after rotating credentials
- fix bug where updates without setting a new secret fails
* feat: Rotate Service Account Key
- Add support for rotating service account key
- Add a check to validate the permissions for the newly created service account key
- Remove `GetClient` for GCP config since HTTPClient is not an accepted form of authentication for all clients. Switching to using Google Credentials instead for authentication
Elim Tsiagbey
Elim Tsiagbey