Improve error message in jupyter when some jupyter kernel errors

[cderv]

This is with ggsql doc while debugging something.

[45/66] syntax\layer\type\range.qmd

Starting ggsql kernel...C:\ProgramData\chocolatey\lib\quarto\tools\share\jupyter\jupyter.py:28: DeprecationWarning: 'asyncio.WindowsSelectorEventLoopPolicy' is deprecated and slated for removal in Python 3.16
  asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
C:\ProgramData\chocolatey\lib\quarto\tools\share\jupyter\jupyter.py:28: DeprecationWarning: 'asyncio.set_event_loop_policy' is deprecated and slated for removal in Python 3.16
  asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
Done

Executing 'range.quarto_ipynb'
  Cell 1/6: ''...Done
  Cell 2/6: ''...

An error occurred while executing the following cell:
------------------
VISUALISE species AS x FROM penguin_summary
DRAW range
  MAPPING low AS ymax, high AS ymin
DRAW point
  MAPPING mean AS y
------------------


Parse error: Parse tree contains errors

Unable to locate an installed version of Python 3.
Install Python 3 from https://www.python.org/downloads/

WARN: Error encountered when rendering files

Clearly the error above about python3 is wrong as 44 doc before this error where executed.