Bump linkinator from 5.0.2 to 6.0.0 (#1012)

Bumps [linkinator](https://github.com/JustinBeckwith/linkinator) from 5.0.2 to 6.0.0.
- [Release notes](https://github.com/JustinBeckwith/linkinator/releases)
- [Commits](JustinBeckwith/linkinator@v5.0.2...v6.0.0)

---
updated-dependencies:
- dependency-name: linkinator
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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