build(deps): bump third-party/doxyconfig from 1188ef2 to 5c80d11

Bumps [third-party/doxyconfig](https://github.com/LizardByte/doxyconfig) from `1188ef2` to `5c80d11`.
- [Commits](LizardByte/doxyconfig@1188ef2...5c80d11)

---
updated-dependencies:
- dependency-name: third-party/doxyconfig
  dependency-version: 5c80d115f6aed4c84b89421d82991ea5965ea940
  dependency-type: direct:production
...

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

Author: dependabot[bot]