deps: bump doxygen-awesome-css from af1d903 to 98dd024

Bumps [doxygen-awesome-css](https://github.com/jothepro/doxygen-awesome-css) from `af1d903` to `98dd024`.
- [Release notes](https://github.com/jothepro/doxygen-awesome-css/releases)
- [Commits](jothepro/doxygen-awesome-css@af1d903...98dd024)

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

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