Epic: #976

Acceptance Criteria

Scenario: A platform engineer can write a secret to Secret Providers
Given a platform engineer is syncing secrets from GCP Secret Manager
When the platform engineer enables the Write method to sync secrets to GCP Secret Manager
Then the platform engineer is able to Write secrets to GCP Secret Manager

Notes

• This should be done for GCP Secret Manager
• Google secret will need to be added to concourse pipeline via Terraform
• This should only be limited to writing a secret to GCP secret store ("no bells and whistles")
• Testing: when I do GCP manager fetch either the console or API, the value should be the same as what is in k8s
• SecretSink statuses:
  -- Synced
  -- NotSynced
  -- Errored