chore(deps): bump DavidAnson/markdownlint-cli2-action from 21 to 22 (#345)

Bumps [DavidAnson/markdownlint-cli2-action](https://github.com/davidanson/markdownlint-cli2-action) from 21 to 22.
- [Release notes](https://github.com/davidanson/markdownlint-cli2-action/releases)
- [Commits](DavidAnson/markdownlint-cli2-action@v21...v22)

---
updated-dependencies:
- dependency-name: DavidAnson/markdownlint-cli2-action
  dependency-version: '22'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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.github/workflows/lint.yml

@@ -48,7 +48,7 @@ jobs:
         with:
           files: "**/*.md"
           separator: ","
-      - uses: DavidAnson/markdownlint-cli2-action@v21
+      - uses: DavidAnson/markdownlint-cli2-action@v22
         if: steps.changed-files.outputs.any_changed == 'true'
         with:
           globs: ${{ steps.changed-files.outputs.all_changed_files }}