Why `python --version --version`?

[cclauss]

Describe the bug

sphinx/.github/workflows/main.yml

Line 97 in df3d94f

run: python --version --version

sphinx/.github/workflows/main.yml

Line 132 in df3d94f

run: python --version --version

Are these typos or does the duplication do something?

How to Reproduce

Look at the code.

Environment Information

`main` branch

Sphinx extensions

No response

Additional context

No response

[AA-Turner]

Python -VV prints the full text of sys.version