ci(deps): bump justinbeckwith/linkinator-action from 1 to 1.5.4

Bumps [justinbeckwith/linkinator-action](https://github.com/justinbeckwith/linkinator-action) from 1 to 1.5.4.
- [Release notes](https://github.com/justinbeckwith/linkinator-action/releases)
- [Changelog](https://github.com/JustinBeckwith/linkinator-action/blob/main/CHANGELOG.md)
- [Commits](JustinBeckwith/linkinator-action@v1...v1.5.4)

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

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
  steps:
  - uses: actions/checkout@v2.3.4
  - name: Check markdown files for broken links
- uses: justinbeckwith/linkinator-action@v1
+ uses: justinbeckwith/linkinator-action@v1.5.4
  with:
  paths: '*.md, base/**/*.md, sdk/**/*.md'
  verbosity: 'INFO'