Bump mattnotmitt/doxygen-action from 1.9.8 to 1.12.0 (#48)

Bumps [mattnotmitt/doxygen-action](https://github.com/mattnotmitt/doxygen-action) from 1.9.8 to 1.12.0.
- [Release notes](https://github.com/mattnotmitt/doxygen-action/releases)
- [Commits](mattnotmitt/doxygen-action@v1.9.8...v1.12.0)

---
updated-dependencies:
- dependency-name: mattnotmitt/doxygen-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/doxygen.yml

@@ -14,7 +14,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Generate Docs
-      uses: mattnotmitt/doxygen-action@v1.9.8
+      uses: mattnotmitt/doxygen-action@v1.12.0
 
     - name: Deploy to Github Pages
       uses: peaceiris/actions-gh-pages@v4