gateway: bump tcort/github-action-markdown-link-check

Bumps [tcort/github-action-markdown-link-check](https://github.com/tcort/github-action-markdown-link-check) from 1.1.1 to 1.1.2.
- [Release notes](https://github.com/tcort/github-action-markdown-link-check/releases)
- [Commits](tcort/github-action-markdown-link-check@f3d3302...e7c7a18)

---
updated-dependencies:
- dependency-name: tcort/github-action-markdown-link-check
  dependency-version: 1.1.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/dummy.yml

@@ -129,7 +129,7 @@ jobs:
         if: false
       - uses: snok/install-poetry@76e04a911780d5b312d89783f7b1cd627778900a  # v1
         if: false
-      - uses: tcort/github-action-markdown-link-check@f3d33029dca1c4a24b87e2df648f9f4604ef6533  # v1.1.1
+      - uses: tcort/github-action-markdown-link-check@e7c7a18363c842693fadde5d41a3bd3573a7a225  # v1.1.2
         if: false
       - uses: untitaker/hyperlink@e66bb17cc9ae341677431edec3b893a0aa6ac747  # 0.1.44
         if: false