Bump DavidAnson/markdownlint-cli2-action from 18 to 19

Bumps [DavidAnson/markdownlint-cli2-action](https://github.com/davidanson/markdownlint-cli2-action) from 18 to 19.
- [Release notes](https://github.com/davidanson/markdownlint-cli2-action/releases)
- [Commits](DavidAnson/markdownlint-cli2-action@v18...v19)

---
updated-dependencies:
- dependency-name: DavidAnson/markdownlint-cli2-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/linting.yaml

@@ -9,7 +9,7 @@ jobs:
       - name: Checkout markdown
         uses: actions/checkout@v4.2.2
       - name: Lint markdown
-        uses: DavidAnson/markdownlint-cli2-action@v18
+        uses: DavidAnson/markdownlint-cli2-action@v19
         continue-on-error: true
         with:
           config: '.markdownlint.yml'