chore(deps): bump remark-footnotes from 4.0.1 to 5.0.0

Bumps [remark-footnotes](https://github.com/remarkjs/remark-footnotes) from 4.0.1 to 5.0.0.
- [Release notes](https://github.com/remarkjs/remark-footnotes/releases)
- [Commits](remarkjs/remark-footnotes@4.0.1...5.0.0)

---
updated-dependencies:
- dependency-name: remark-footnotes
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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