chore(deps): update davidanson/markdownlint-cli2-action action to v19

Author: renovate[bot]

.github/workflows/CICD.yml

@@ -145,7 +145,7 @@ jobs:
       shell: bash
       run: |
         RUSTDOCFLAGS="-Dwarnings" cargo doc  ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} --no-deps --workspace --document-private-items
-    - uses: DavidAnson/markdownlint-cli2-action@v18
+    - uses: DavidAnson/markdownlint-cli2-action@v19
       with:
         fix: "true"
         globs: |