Wrong python versions in azure-pipelines.yml

[Paul Molodowitch]

Describe the bug

Just happened to look at the recent changes after you merged my MR (thanks!), and happened to notice this in azure_pipelines.yml:

    Python38:
      python.version: '3.9'
      TOXENV: py39
    Python39:
      python.version: '3.10'
      TOXENV: py310
    Python310:
      python.version: '3.11'
      TOXENV: py311

ie, it looks like Python38 maps to 3.9, etc.

I assume this is a typo?