Bump DavidAnson/markdownlint-cli2-action from 14 to 15 (#542)

Bumps [DavidAnson/markdownlint-cli2-action](https://github.com/davidanson/markdownlint-cli2-action) from 14 to 15.
- [Release notes](https://github.com/davidanson/markdownlint-cli2-action/releases)
- [Commits](DavidAnson/markdownlint-cli2-action@v14...v15)

---
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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/lint.yml

@@ -28,15 +28,15 @@ jobs:
             ruff format src
 
       - name: Markdown Lint base-files
-        uses: DavidAnson/markdownlint-cli2-action@v14
+        uses: DavidAnson/markdownlint-cli2-action@v15
         with:
             fix: true
             globs: |
               *.md
               .github/**/*.md
         continue-on-error: true
       - name: Markdown Lint Docs
-        uses: DavidAnson/markdownlint-cli2-action@v14
+        uses: DavidAnson/markdownlint-cli2-action@v15
         with:
             fix: true
             globs: docs/**/*.md