chore(deps): update davidanson/markdownlint-cli2-action action to v22

Author: renovate[bot]

.github/workflows/lint.yml

@@ -29,7 +29,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - uses: DavidAnson/markdownlint-cli2-action@v21
+      - uses: DavidAnson/markdownlint-cli2-action@v22
         with:
           globs: |
             README.md