build(deps): bump third-party/doxyconfig from a73f908 to 1188ef2

Bumps [third-party/doxyconfig](https://github.com/LizardByte/doxyconfig) from `a73f908` to `1188ef2`.
- [Commits](LizardByte/doxyconfig@a73f908...1188ef2)

---
updated-dependencies:
- dependency-name: third-party/doxyconfig
  dependency-version: 1188ef2b96efb3e003a591ee01714339c2d9161c
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]