text: Title: [FEA] Docker security scan
  Body: **Is your feature request related to a problem? Please describe.**
  PyGraphistry should pass security scans for sensitive environments and ideally with an audit trail
  
  **Describe the solution you'd like**
  - Use a simple free scanner like `docker scan`
  - Run as part of CI
  - Run as part of release, including scan output
  
  TBD: should releases fail if a high sev? And if so, a way to override
  
  **Additional context**
  Add any other context or screenshots about the feature request here.
  