Support for submodules under static/

[samueloph]

I have tried adding a submodule under static/ at samueloph/samueloph.github.io@517a722

When I tried to use that, for example, with [samuel_henrique_samueloph_cv_2024_03.pdf](../personal_website_files/samuel_henrique_samueloph_cv_2024_03.pdf), I got a 404 on gh-pages, even though it works with zola serve locally.

Looking at the gh-pages branch: https://github.com/samueloph/samueloph.github.io/tree/df08af396275b663eae79869635b8d37b56bd737/

The submodule personal_website_files seem wrong.

The CI job also failed at https://github.com/samueloph/samueloph.github.io/actions/runs/11497188825/job/32000372269, with:

Fetching submodules
  /usr/bin/git submodule sync --recursive
  /usr/bin/git -c protocol.version=2 submodule update --init --force --depth=1 --recursive
  Error: fatal: No url found for submodule path 'personal_website_files' in .gitmodules
  Error: The process '/usr/bin/git' failed with exit code 128

It looks like zola-deploy-action doesn't support submodules under the static/ folder, is that right?

[samueloph]

I've managed to workaround the issue by forking the repo and doing this change:
samueloph@54dd5b0

This is specific to the submodule I'm using, but it's very easy to change it to fit another usecase.

Unfortunately the solution is not good enough to be merged in the main repo, as it hardcodes the submodule.