repo:ci-management: (post-release) remove '|| true' from vars/getPodInfo.groovy

vars/getPodInfo.groovy will run several  kubectl queries to display server info.

Why are all the calls wrapped with '|| true' ?

• If kubectl calls are failing errors will be masked.
• If pipoeline commands (sort, unique) are failing garbage will be written into config files

Remove all the '|| true' calls and fix anything broken.

Extra credit:

• Split queries into several named methods and document.
• There is also potential for some refactoring:
  • Move list of shell commands into an array, iterate and invoke.
  • Remove pipeline (|sort |unique) – shell returns raw command output.
    • Use native groovy functions to sort/etc.
    • This would be helpful for debugging and error recovery.
    • Command output can be displayed when pipeline is running in debug mode and groovy functions can take remedial action when problems are detected.