[docu] Use CMake-generated Doxyfile instead of hard-coded one

[ferdymercury]

This Pull request:

Changes or fixes:

It's quite hard to have an overview of a 3k-line-long Doxyfile, and it needs constant commits "update to version 1.9.8", etc. I propose here instead to use a CMake-generated Doxyfile, where you only declare those flags that are different from the default values. (as found out by command doxygen -x_noenv on the preexisting Doxyfile)

Checklist:

• [x] tested changes locally
• [ ] updated the docs (if necessary)

[github-actions[bot]]

Test Results

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Results for commit 296e26df.

:recycle: This comment has been updated with latest results.

[couet]

Hi @ferdymercury,

Thank you for this PR! We are currently in the process of transitioning the daily documentation build from Jenkins to GitHub Actions. As part of this effort, we have created a temporary folder named doxygen_s3. This setup is not yet finalized and remains unstable for now. I suggest we revisit your PR once this work is completed. Is that fine with you ?

[ferdymercury]

Perfect, sounds good!

[ferdymercury]

gentle ping @couet