Bump src/health_manager_next:

David Sabeti, Gregg Van Hove and Maria Shaldibina (1):
      Use global config

Gregg Van Hove and Maria Shaldibina (3):
      Revert "Revert "Share the config between classes""
      Revert "Revert "Refactor droplet intervals""
      Fix HM varz publishing [finishes #51860335]