Following on from OSSM-3371, this epic is a catch all for ambient related work that goes beyond the scope of developer preview.

This could include:

• Productizing Z-tunnel, including OpenSSL.
• Sail operator enhancements beyond community support (dev preview)
• Zero down-time upgrade functionality needed to support production users:
  • https://github.com/istio/istio/issues/51126
• High-availability support for Z-tunnel:
  • https://github.com/istio/istio/issues/48949
• Other upstream work related to stabilizing ambient mode for OpenShift users who require production grade support.
• Initial ambient mode product documentation