chore(deps): bump doxygen-awesome-css from 40e9b25 to af1d903

Bumps [doxygen-awesome-css](https://github.com/jothepro/doxygen-awesome-css) from `40e9b25` to `af1d903`.
- [Release notes](https://github.com/jothepro/doxygen-awesome-css/releases)
- [Commits](jothepro/doxygen-awesome-css@40e9b25...af1d903)

---
updated-dependencies:
- dependency-name: doxygen-awesome-css
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>