Merge pull request #5175 from vcmi/dependabot/github_actions/DavidAnson/markdownlint-cli2-action-19

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

.github/workflows/github.yml

@@ -404,7 +404,7 @@ jobs:
             python3 CI/validate_json.py
 
         - name: Validate Markdown
-          uses: DavidAnson/markdownlint-cli2-action@v18
+          uses: DavidAnson/markdownlint-cli2-action@v19
           with:
             config: 'CI/example.markdownlint-cli2.jsonc'
             globs: '**/*.md'