gateway: bump JustinBeckwith/linkinator-action from 1.11.0 to 2.3

Bumps [JustinBeckwith/linkinator-action](https://github.com/justinbeckwith/linkinator-action) from 1.11.0 to 2.3.
- [Release notes](https://github.com/justinbeckwith/linkinator-action/releases)
- [Changelog](https://github.com/JustinBeckwith/linkinator-action/blob/main/CHANGELOG.md)
- [Commits](JustinBeckwith/linkinator-action@3d5ba09...af984b9)

---
updated-dependencies:
- dependency-name: JustinBeckwith/linkinator-action
  dependency-version: '2.3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/dummy.yml

@@ -27,7 +27,7 @@ jobs:
         if: false
       - uses: JamesIves/github-pages-deploy-action@6c2d9db40f9296374acc17b90404b6e8864128c8  # v4.7.3
         if: false
-      - uses: JustinBeckwith/linkinator-action@3d5ba091319fa7b0ac14703761eebb7d100e6f6d  # v1.11.0
+      - uses: JustinBeckwith/linkinator-action@af984b9f30f63e796ae2ea5be5e07cb587f1bbd9  # v2.3
         if: false
       - uses: Kesin11/actions-timeline@54d513e0b5ff1158f1cf8321108d666a5a6c1fca  # v2.2.5
         if: false