Bump mkdocs-glightbox from 0.3.7 to 0.4.0

Bumps [mkdocs-glightbox](https://github.com/Blueswen/mkdocs-glightbox) from 0.3.7 to 0.4.0.
- [Release notes](https://github.com/Blueswen/mkdocs-glightbox/releases)
- [Changelog](https://github.com/blueswen/mkdocs-glightbox/blob/main/CHANGELOG)
- [Commits](blueswen/mkdocs-glightbox@v0.3.7...v0.4.0)

---
updated-dependencies:
- dependency-name: mkdocs-glightbox
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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