ci: use reusable Doxygen GH Pages workflow from makers-devops

[ederjc]

Summary

Adds a Doxygen GitHub Pages workflow that delegates to the centralized reusable workflow maintained in Infineon/makers-devops.

Changes

• .github/workflows/doxygen_gh.yml: New file — calls Infineon/makers-devops/.github/workflows/doxygen_gh_pages.yml@main to build Doxygen docs and deploy to GitHub Pages on every push or PR targeting master

Motivation

• Consistency: Aligns this repo with the standard Doxygen CI setup used across Infineon Arduino libraries
• Maintainability: Centralizes the Doxygen build and deployment logic in a single reusable workflow
• Automation: Ensures GitHub Pages documentation is kept up to date automatically

[jaenrig-ifx]

@ederjc this library already provides RtD https://high-side-switch.readthedocs.io/en/latest/
with exhale-doxygen API docs.
So this is not needed

[ederjc]

I was filtering by using the gh-pages branch. This repo has the branch and deployment. We should remove both then?

[jaenrig-ifx]

I was filtering by using the gh-pages branch. This repo has the branch and deployment. We should remove both then?

That belonged to an old version. It can be removed. Not sure if it harms if it stays.

This was the main limitation of the gh-pages docs. The lack of support for multiple versions...